21573360

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{83}}^1$

素因数の和:140

約数の個数: 180

約数和(自身を含む): 77385672

約数和(自身を除く): 55812312

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 36, 38, 40, 45, 48, 57, 60, 72, 76, 80, 83, 90, 95, 114, 120, 144, 152, 166, 171, 180, 190, 228, 240, 249, 285, 304, 332, 342, 360, 361, 380, 415, 456, 498, 570, 664, 684, 720, 722, 747, 760, 830, 855, 912, 996, 1083, 1140, 1245, 1328, 1368, 1444, 1494, 1520, 1577, 1660, 1710, 1805, 1992, 2166, 2280, 2490, 2736, 2888, 2988, 3154, 3249, 3320, 3420, 3610, 3735, 3984, 4332, 4560, 4731, 4980, 5415, 5776, 5976, 6308, 6498, 6640, 6840, 7220, 7470, 7885, 8664, 9462, 9960, 10830, 11952, 12616, 12996, 13680, 14193, 14440, 14940, 15770, 16245, 17328, 18924, 19920, 21660, 23655, 25232, 25992, 28386, 28880, 29880, 29963, 31540, 32490, 37848, 43320, 47310, 51984, 56772, 59760, 59926, 63080, 64980, 70965, 75696, 86640, 89889, 94620, 113544, 119852, 126160, 129960, 141930, 149815, 179778, 189240, 227088, 239704, 259920, 269667, 283860, 299630, 359556, 378480, 449445, 479408, 539334, 567720, 599260, 719112, 898890, 1078668, 1135440, 1198520, 1348335, 1438224, 1797780, 2157336, 2397040, 2696670, 3595560, 4314672, 5393340, 7191120, 10786680, 21573360]

約数ペア:

[(1, 21573360), (2, 10786680), (3, 7191120), (4, 5393340), (5, 4314672), (6, 3595560), (8, 2696670), (9, 2397040), (10, 2157336), (12, 1797780), (15, 1438224), (16, 1348335), (18, 1198520), (19, 1135440), (20, 1078668), (24, 898890), (30, 719112), (36, 599260), (38, 567720), (40, 539334), (45, 479408), (48, 449445), (57, 378480), (60, 359556), (72, 299630), (76, 283860), (80, 269667), (83, 259920), (90, 239704), (95, 227088), (114, 189240), (120, 179778), (144, 149815), (152, 141930), (166, 129960), (171, 126160), (180, 119852), (190, 113544), (228, 94620), (240, 89889), (249, 86640), (285, 75696), (304, 70965), (332, 64980), (342, 63080), (360, 59926), (361, 59760), (380, 56772), (415, 51984), (456, 47310), (498, 43320), (570, 37848), (664, 32490), (684, 31540), (720, 29963), (722, 29880), (747, 28880), (760, 28386), (830, 25992), (855, 25232), (912, 23655), (996, 21660), (1083, 19920), (1140, 18924), (1245, 17328), (1328, 16245), (1368, 15770), (1444, 14940), (1494, 14440), (1520, 14193), (1577, 13680), (1660, 12996), (1710, 12616), (1805, 11952), (1992, 10830), (2166, 9960), (2280, 9462), (2490, 8664), (2736, 7885), (2888, 7470), (2988, 7220), (3154, 6840), (3249, 6640), (3320, 6498), (3420, 6308), (3610, 5976), (3735, 5776), (3984, 5415), (4332, 4980), (4560, 4731)]