20429279

素因数分解:

${\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{163}}^1\times {\mathrm{311}}^1$

素因数の和:518

約数の個数: 16

約数和(自身を含む): 22923264

約数和(自身を除く): 2493985

約数列:

[1, 13, 31, 163, 311, 403, 2119, 4043, 5053, 9641, 50693, 65689, 125333, 659009, 1571483, 20429279]

約数ペア:

[(1, 20429279), (13, 1571483), (31, 659009), (163, 125333), (311, 65689), (403, 50693), (2119, 9641), (4043, 5053)]