20737825

素因数分解:

$5^2\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{191}}^1$

素因数の和:345

約数の個数: 24

約数和(自身を含む): 26712576

約数和(自身を除く): 5974751

約数列:

[1, 5, 25, 43, 101, 191, 215, 505, 955, 1075, 2525, 4343, 4775, 8213, 19291, 21715, 41065, 96455, 108575, 205325, 482275, 829513, 4147565, 20737825]

約数ペア:

[(1, 20737825), (5, 4147565), (25, 829513), (43, 482275), (101, 205325), (191, 108575), (215, 96455), (505, 41065), (955, 21715), (1075, 19291), (2525, 8213), (4343, 4775)]