21004875

素因数分解:

$3^2\times 5^3\times {\mathrm{18671}}^1$

素因数の和:18692

約数の個数: 24

約数和(自身を含む): 37866816

約数和(自身を除く): 16861941

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 125, 225, 375, 1125, 18671, 56013, 93355, 168039, 280065, 466775, 840195, 1400325, 2333875, 4200975, 7001625, 21004875]

約数ペア:

[(1, 21004875), (3, 7001625), (5, 4200975), (9, 2333875), (15, 1400325), (25, 840195), (45, 466775), (75, 280065), (125, 168039), (225, 93355), (375, 56013), (1125, 18671)]