21242625

素因数分解:

$3^1\times 5^3\times {\mathrm{37}}^1\times {\mathrm{1531}}^1$

素因数の和:1586

約数の個数: 32

約数和(自身を含む): 36326784

約数和(自身を除く): 15084159

約数列:

[1, 3, 5, 15, 25, 37, 75, 111, 125, 185, 375, 555, 925, 1531, 2775, 4593, 4625, 7655, 13875, 22965, 38275, 56647, 114825, 169941, 191375, 283235, 574125, 849705, 1416175, 4248525, 7080875, 21242625]

約数ペア:

[(1, 21242625), (3, 7080875), (5, 4248525), (15, 1416175), (25, 849705), (37, 574125), (75, 283235), (111, 191375), (125, 169941), (185, 114825), (375, 56647), (555, 38275), (925, 22965), (1531, 13875), (2775, 7655), (4593, 4625)]