21376275

素因数分解:

$3^1\times 5^2\times {\mathrm{421}}^1\times {\mathrm{677}}^1$

素因数の和:1111

約数の個数: 24

約数和(自身を含む): 35478384

約数和(自身を除く): 14102109

約数列:

[1, 3, 5, 15, 25, 75, 421, 677, 1263, 2031, 2105, 3385, 6315, 10155, 10525, 16925, 31575, 50775, 285017, 855051, 1425085, 4275255, 7125425, 21376275]

約数ペア:

[(1, 21376275), (3, 7125425), (5, 4275255), (15, 1425085), (25, 855051), (75, 285017), (421, 50775), (677, 31575), (1263, 16925), (2031, 10525), (2105, 10155), (3385, 6315)]