21503160

素因数分解:

$2^3\times 3^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{53}}^1$

素因数の和:107

約数の個数: 288

約数和(自身を含む): 86430240

約数和(自身を除く): 64927080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 23, 24, 28, 30, 35, 36, 40, 42, 45, 46, 49, 53, 56, 60, 63, 69, 70, 72, 84, 90, 92, 98, 105, 106, 115, 120, 126, 138, 140, 147, 159, 161, 168, 180, 184, 196, 207, 210, 212, 230, 245, 252, 265, 276, 280, 294, 315, 318, 322, 345, 360, 371, 392, 414, 420, 424, 441, 460, 477, 483, 490, 504, 530, 552, 588, 630, 636, 644, 690, 735, 742, 795, 805, 828, 840, 882, 920, 954, 966, 980, 1035, 1060, 1113, 1127, 1176, 1219, 1260, 1272, 1288, 1380, 1449, 1470, 1484, 1590, 1610, 1656, 1764, 1855, 1908, 1932, 1960, 2070, 2120, 2205, 2226, 2254, 2385, 2415, 2438, 2520, 2597, 2760, 2898, 2940, 2968, 3180, 3220, 3339, 3381, 3528, 3657, 3710, 3816, 3864, 4140, 4410, 4452, 4508, 4770, 4830, 4876, 5194, 5565, 5635, 5796, 5880, 6095, 6360, 6440, 6678, 6762, 7245, 7314, 7420, 7791, 8280, 8533, 8820, 8904, 9016, 9540, 9660, 9752, 10143, 10388, 10971, 11130, 11270, 11592, 12190, 12985, 13356, 13524, 14490, 14628, 14840, 15582, 16695, 16905, 17066, 17640, 18285, 19080, 19320, 20286, 20776, 21942, 22260, 22540, 23373, 24380, 25599, 25970, 26712, 27048, 28980, 29256, 31164, 33390, 33810, 34132, 36570, 38955, 40572, 42665, 43884, 44520, 45080, 46746, 48760, 50715, 51198, 51940, 54855, 57960, 59731, 62328, 66780, 67620, 68264, 73140, 76797, 77910, 81144, 85330, 87768, 93492, 101430, 102396, 103880, 109710, 116865, 119462, 127995, 133560, 135240, 146280, 153594, 155820, 170660, 179193, 186984, 202860, 204792, 219420, 233730, 238924, 255990, 298655, 307188, 311640, 341320, 358386, 383985, 405720, 438840, 467460, 477848, 511980, 537579, 597310, 614376, 716772, 767970, 895965, 934920, 1023960, 1075158, 1194620, 1433544, 1535940, 1791930, 2150316, 2389240, 2687895, 3071880, 3583860, 4300632, 5375790, 7167720, 10751580, 21503160]

約数ペア:

[(1, 21503160), (2, 10751580), (3, 7167720), (4, 5375790), (5, 4300632), (6, 3583860), (7, 3071880), (8, 2687895), (9, 2389240), (10, 2150316), (12, 1791930), (14, 1535940), (15, 1433544), (18, 1194620), (20, 1075158), (21, 1023960), (23, 934920), (24, 895965), (28, 767970), (30, 716772), (35, 614376), (36, 597310), (40, 537579), (42, 511980), (45, 477848), (46, 467460), (49, 438840), (53, 405720), (56, 383985), (60, 358386), (63, 341320), (69, 311640), (70, 307188), (72, 298655), (84, 255990), (90, 238924), (92, 233730), (98, 219420), (105, 204792), (106, 202860), (115, 186984), (120, 179193), (126, 170660), (138, 155820), (140, 153594), (147, 146280), (159, 135240), (161, 133560), (168, 127995), (180, 119462), (184, 116865), (196, 109710), (207, 103880), (210, 102396), (212, 101430), (230, 93492), (245, 87768), (252, 85330), (265, 81144), (276, 77910), (280, 76797), (294, 73140), (315, 68264), (318, 67620), (322, 66780), (345, 62328), (360, 59731), (371, 57960), (392, 54855), (414, 51940), (420, 51198), (424, 50715), (441, 48760), (460, 46746), (477, 45080), (483, 44520), (490, 43884), (504, 42665), (530, 40572), (552, 38955), (588, 36570), (630, 34132), (636, 33810), (644, 33390), (690, 31164), (735, 29256), (742, 28980), (795, 27048), (805, 26712), (828, 25970), (840, 25599), (882, 24380), (920, 23373), (954, 22540), (966, 22260), (980, 21942), (1035, 20776), (1060, 20286), (1113, 19320), (1127, 19080), (1176, 18285), (1219, 17640), (1260, 17066), (1272, 16905), (1288, 16695), (1380, 15582), (1449, 14840), (1470, 14628), (1484, 14490), (1590, 13524), (1610, 13356), (1656, 12985), (1764, 12190), (1855, 11592), (1908, 11270), (1932, 11130), (1960, 10971), (2070, 10388), (2120, 10143), (2205, 9752), (2226, 9660), (2254, 9540), (2385, 9016), (2415, 8904), (2438, 8820), (2520, 8533), (2597, 8280), (2760, 7791), (2898, 7420), (2940, 7314), (2968, 7245), (3180, 6762), (3220, 6678), (3339, 6440), (3381, 6360), (3528, 6095), (3657, 5880), (3710, 5796), (3816, 5635), (3864, 5565), (4140, 5194), (4410, 4876), (4452, 4830), (4508, 4770)]