21308625

素因数分解:

$3^2\times 5^3\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:112

約数の個数: 96

約数和(自身を含む): 43610112

約数和(自身を除く): 22301487

約数列:

[1, 3, 5, 9, 13, 15, 25, 31, 39, 45, 47, 65, 75, 93, 117, 125, 141, 155, 195, 225, 235, 279, 325, 375, 403, 423, 465, 585, 611, 705, 775, 975, 1125, 1175, 1209, 1395, 1457, 1625, 1833, 2015, 2115, 2325, 2925, 3055, 3525, 3627, 3875, 4371, 4875, 5499, 5875, 6045, 6975, 7285, 9165, 10075, 10575, 11625, 13113, 14625, 15275, 17625, 18135, 18941, 21855, 27495, 30225, 34875, 36425, 45825, 50375, 52875, 56823, 65565, 76375, 90675, 94705, 109275, 137475, 151125, 170469, 182125, 229125, 284115, 327825, 453375, 473525, 546375, 687375, 852345, 1420575, 1639125, 2367625, 4261725, 7102875, 21308625]

約数ペア:

[(1, 21308625), (3, 7102875), (5, 4261725), (9, 2367625), (13, 1639125), (15, 1420575), (25, 852345), (31, 687375), (39, 546375), (45, 473525), (47, 453375), (65, 327825), (75, 284115), (93, 229125), (117, 182125), (125, 170469), (141, 151125), (155, 137475), (195, 109275), (225, 94705), (235, 90675), (279, 76375), (325, 65565), (375, 56823), (403, 52875), (423, 50375), (465, 45825), (585, 36425), (611, 34875), (705, 30225), (775, 27495), (975, 21855), (1125, 18941), (1175, 18135), (1209, 17625), (1395, 15275), (1457, 14625), (1625, 13113), (1833, 11625), (2015, 10575), (2115, 10075), (2325, 9165), (2925, 7285), (3055, 6975), (3525, 6045), (3627, 5875), (3875, 5499), (4371, 4875)]