21013221375

素因数分解:

$3^2\times 5^3\times {\mathrm{53}}^1\times {\mathrm{352423}}^1$

素因数の和:352497

約数の個数: 48

約数和(自身を含む): 38594657088

約数和(自身を除く): 17581435713

約数列:

[1, 3, 5, 9, 15, 25, 45, 53, 75, 125, 159, 225, 265, 375, 477, 795, 1125, 1325, 2385, 3975, 6625, 11925, 19875, 59625, 352423, 1057269, 1762115, 3171807, 5286345, 8810575, 15859035, 18678419, 26431725, 44052875, 56035257, 79295175, 93392095, 132158625, 168105771, 280176285, 396475875, 466960475, 840528855, 1400881425, 2334802375, 4202644275, 7004407125, 21013221375]

約数ペア:

[(1, 21013221375), (3, 7004407125), (5, 4202644275), (9, 2334802375), (15, 1400881425), (25, 840528855), (45, 466960475), (53, 396475875), (75, 280176285), (125, 168105771), (159, 132158625), (225, 93392095), (265, 79295175), (375, 56035257), (477, 44052875), (795, 26431725), (1125, 18678419), (1325, 15859035), (2385, 8810575), (3975, 5286345), (6625, 3171807), (11925, 1762115), (19875, 1057269), (59625, 352423)]