21410125

素因数分解:

$5^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{677}}^1$

素因数の和:726

約数の個数: 32

約数和(自身を含む): 30461184

約数和(自身を除く): 9051059

約数列:

[1, 5, 11, 23, 25, 55, 115, 125, 253, 275, 575, 677, 1265, 1375, 2875, 3385, 6325, 7447, 15571, 16925, 31625, 37235, 77855, 84625, 171281, 186175, 389275, 856405, 930875, 1946375, 4282025, 21410125]

約数ペア:

[(1, 21410125), (5, 4282025), (11, 1946375), (23, 930875), (25, 856405), (55, 389275), (115, 186175), (125, 171281), (253, 84625), (275, 77855), (575, 37235), (677, 31625), (1265, 16925), (1375, 15571), (2875, 7447), (3385, 6325)]