21191625

素因数分解:

$3^4\times 5^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1$

素因数の和:70

約数の個数: 160

約数和(自身を含む): 50738688

約数和(自身を除く): 29547063

約数列:

[1, 3, 5, 7, 9, 13, 15, 21, 23, 25, 27, 35, 39, 45, 63, 65, 69, 75, 81, 91, 105, 115, 117, 125, 135, 161, 175, 189, 195, 207, 225, 273, 299, 315, 325, 345, 351, 375, 405, 455, 483, 525, 567, 575, 585, 621, 675, 805, 819, 875, 897, 945, 975, 1035, 1053, 1125, 1365, 1449, 1495, 1575, 1625, 1725, 1755, 1863, 2025, 2093, 2275, 2415, 2457, 2625, 2691, 2835, 2875, 2925, 3105, 3375, 4025, 4095, 4347, 4485, 4725, 4875, 5175, 5265, 6279, 6825, 7245, 7371, 7475, 7875, 8073, 8625, 8775, 9315, 10125, 10465, 11375, 12075, 12285, 13041, 13455, 14175, 14625, 15525, 18837, 20125, 20475, 21735, 22425, 23625, 24219, 25875, 26325, 31395, 34125, 36225, 36855, 37375, 40365, 43875, 46575, 52325, 56511, 60375, 61425, 65205, 67275, 70875, 77625, 94185, 102375, 108675, 112125, 121095, 131625, 156975, 169533, 181125, 184275, 201825, 232875, 261625, 282555, 307125, 326025, 336375, 470925, 543375, 605475, 784875, 847665, 921375, 1009125, 1412775, 1630125, 2354625, 3027375, 4238325, 7063875, 21191625]

約数ペア:

[(1, 21191625), (3, 7063875), (5, 4238325), (7, 3027375), (9, 2354625), (13, 1630125), (15, 1412775), (21, 1009125), (23, 921375), (25, 847665), (27, 784875), (35, 605475), (39, 543375), (45, 470925), (63, 336375), (65, 326025), (69, 307125), (75, 282555), (81, 261625), (91, 232875), (105, 201825), (115, 184275), (117, 181125), (125, 169533), (135, 156975), (161, 131625), (175, 121095), (189, 112125), (195, 108675), (207, 102375), (225, 94185), (273, 77625), (299, 70875), (315, 67275), (325, 65205), (345, 61425), (351, 60375), (375, 56511), (405, 52325), (455, 46575), (483, 43875), (525, 40365), (567, 37375), (575, 36855), (585, 36225), (621, 34125), (675, 31395), (805, 26325), (819, 25875), (875, 24219), (897, 23625), (945, 22425), (975, 21735), (1035, 20475), (1053, 20125), (1125, 18837), (1365, 15525), (1449, 14625), (1495, 14175), (1575, 13455), (1625, 13041), (1725, 12285), (1755, 12075), (1863, 11375), (2025, 10465), (2093, 10125), (2275, 9315), (2415, 8775), (2457, 8625), (2625, 8073), (2691, 7875), (2835, 7475), (2875, 7371), (2925, 7245), (3105, 6825), (3375, 6279), (4025, 5265), (4095, 5175), (4347, 4875), (4485, 4725)]