20747701

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{269}}^1\times {\mathrm{349}}^1$

素因数の和:648

約数の個数: 16

約数和(自身を含む): 23814000

約数和(自身を除く): 3066299

約数列:

[1, 13, 17, 221, 269, 349, 3497, 4537, 4573, 5933, 59449, 77129, 93881, 1220453, 1595977, 20747701]

約数ペア:

[(1, 20747701), (13, 1595977), (17, 1220453), (221, 93881), (269, 77129), (349, 59449), (3497, 5933), (4537, 4573)]