21156692

素因数分解:

$2^2\times {\mathrm{59}}^1\times {\mathrm{157}}^1\times {\mathrm{571}}^1$

素因数の和:791

約数の個数: 24

約数和(自身を含む): 37957920

約数和(自身を除く): 16801228

約数列:

[1, 2, 4, 59, 118, 157, 236, 314, 571, 628, 1142, 2284, 9263, 18526, 33689, 37052, 67378, 89647, 134756, 179294, 358588, 5289173, 10578346, 21156692]

約数ペア:

[(1, 21156692), (2, 10578346), (4, 5289173), (59, 358588), (118, 179294), (157, 134756), (236, 89647), (314, 67378), (571, 37052), (628, 33689), (1142, 18526), (2284, 9263)]