20007604

素因数分解:

$2^2\times {\mathrm{109}}^2\times {\mathrm{421}}^1$

素因数の和:643

約数の個数: 18

約数和(自身を含む): 35421414

約数和(自身を除く): 15413810

約数列:

[1, 2, 4, 109, 218, 421, 436, 842, 1684, 11881, 23762, 45889, 47524, 91778, 183556, 5001901, 10003802, 20007604]

約数ペア:

[(1, 20007604), (2, 10003802), (4, 5001901), (109, 183556), (218, 91778), (421, 47524), (436, 45889), (842, 23762), (1684, 11881)]