20657533

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{211}}^1\times {\mathrm{443}}^1$

素因数の和:684

約数の個数: 16

約数和(自身を含む): 23720256

約数和(自身を除く): 3062723

約数列:

[1, 13, 17, 211, 221, 443, 2743, 3587, 5759, 7531, 46631, 93473, 97903, 1215149, 1589041, 20657533]

約数ペア:

[(1, 20657533), (13, 1589041), (17, 1215149), (211, 97903), (221, 93473), (443, 46631), (2743, 7531), (3587, 5759)]