21014640

素因数分解:

$2^4\times 3^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1$

素因数の和:98

約数の個数: 240

約数和(自身を含む): 77995008

約数和(自身を除く): 56980368

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 27, 30, 36, 40, 45, 46, 47, 48, 54, 60, 69, 72, 80, 81, 90, 92, 94, 108, 115, 120, 135, 138, 141, 144, 162, 180, 184, 188, 207, 216, 230, 235, 240, 243, 270, 276, 282, 324, 345, 360, 368, 376, 405, 414, 423, 432, 460, 470, 486, 540, 552, 564, 621, 648, 690, 705, 720, 752, 810, 828, 846, 920, 940, 972, 1035, 1080, 1081, 1104, 1128, 1215, 1242, 1269, 1296, 1380, 1410, 1620, 1656, 1692, 1840, 1863, 1880, 1944, 2070, 2115, 2160, 2162, 2256, 2430, 2484, 2538, 2760, 2820, 3105, 3240, 3243, 3312, 3384, 3726, 3760, 3807, 3888, 4140, 4230, 4324, 4860, 4968, 5076, 5405, 5520, 5589, 5640, 6210, 6345, 6480, 6486, 6768, 7452, 7614, 8280, 8460, 8648, 9315, 9720, 9729, 9936, 10152, 10810, 11178, 11280, 11421, 12420, 12690, 12972, 14904, 15228, 16215, 16560, 16920, 17296, 18630, 19035, 19440, 19458, 20304, 21620, 22356, 22842, 24840, 25380, 25944, 27945, 29187, 29808, 30456, 32430, 33840, 37260, 38070, 38916, 43240, 44712, 45684, 48645, 49680, 50760, 51888, 55890, 57105, 58374, 60912, 64860, 74520, 76140, 77832, 86480, 87561, 89424, 91368, 97290, 101520, 111780, 114210, 116748, 129720, 145935, 149040, 152280, 155664, 175122, 182736, 194580, 223560, 228420, 233496, 259440, 262683, 291870, 304560, 350244, 389160, 437805, 447120, 456840, 466992, 525366, 583740, 700488, 778320, 875610, 913680, 1050732, 1167480, 1313415, 1400976, 1751220, 2101464, 2334960, 2626830, 3502440, 4202928, 5253660, 7004880, 10507320, 21014640]

約数ペア:

[(1, 21014640), (2, 10507320), (3, 7004880), (4, 5253660), (5, 4202928), (6, 3502440), (8, 2626830), (9, 2334960), (10, 2101464), (12, 1751220), (15, 1400976), (16, 1313415), (18, 1167480), (20, 1050732), (23, 913680), (24, 875610), (27, 778320), (30, 700488), (36, 583740), (40, 525366), (45, 466992), (46, 456840), (47, 447120), (48, 437805), (54, 389160), (60, 350244), (69, 304560), (72, 291870), (80, 262683), (81, 259440), (90, 233496), (92, 228420), (94, 223560), (108, 194580), (115, 182736), (120, 175122), (135, 155664), (138, 152280), (141, 149040), (144, 145935), (162, 129720), (180, 116748), (184, 114210), (188, 111780), (207, 101520), (216, 97290), (230, 91368), (235, 89424), (240, 87561), (243, 86480), (270, 77832), (276, 76140), (282, 74520), (324, 64860), (345, 60912), (360, 58374), (368, 57105), (376, 55890), (405, 51888), (414, 50760), (423, 49680), (432, 48645), (460, 45684), (470, 44712), (486, 43240), (540, 38916), (552, 38070), (564, 37260), (621, 33840), (648, 32430), (690, 30456), (705, 29808), (720, 29187), (752, 27945), (810, 25944), (828, 25380), (846, 24840), (920, 22842), (940, 22356), (972, 21620), (1035, 20304), (1080, 19458), (1081, 19440), (1104, 19035), (1128, 18630), (1215, 17296), (1242, 16920), (1269, 16560), (1296, 16215), (1380, 15228), (1410, 14904), (1620, 12972), (1656, 12690), (1692, 12420), (1840, 11421), (1863, 11280), (1880, 11178), (1944, 10810), (2070, 10152), (2115, 9936), (2160, 9729), (2162, 9720), (2256, 9315), (2430, 8648), (2484, 8460), (2538, 8280), (2760, 7614), (2820, 7452), (3105, 6768), (3240, 6486), (3243, 6480), (3312, 6345), (3384, 6210), (3726, 5640), (3760, 5589), (3807, 5520), (3888, 5405), (4140, 5076), (4230, 4968), (4324, 4860)]