20639294

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{227}}^1\times {\mathrm{269}}^1$

素因数の和:524

約数の個数: 24

約数和(自身を含む): 33796440

約数和(自身を除く): 13157146

約数列:

[1, 2, 13, 26, 169, 227, 269, 338, 454, 538, 2951, 3497, 5902, 6994, 38363, 45461, 61063, 76726, 90922, 122126, 793819, 1587638, 10319647, 20639294]

約数ペア:

[(1, 20639294), (2, 10319647), (13, 1587638), (26, 793819), (169, 122126), (227, 90922), (269, 76726), (338, 61063), (454, 45461), (538, 38363), (2951, 6994), (3497, 5902)]