21683825

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{877}}^1$

素因数の和:953

約数の個数: 24

約数和(自身を含む): 28742208

約数和(自身を除く): 7058383

約数列:

[1, 5, 23, 25, 43, 115, 215, 575, 877, 989, 1075, 4385, 4945, 20171, 21925, 24725, 37711, 100855, 188555, 504275, 867353, 942775, 4336765, 21683825]

約数ペア:

[(1, 21683825), (5, 4336765), (23, 942775), (25, 867353), (43, 504275), (115, 188555), (215, 100855), (575, 37711), (877, 24725), (989, 21925), (1075, 20171), (4385, 4945)]