20397039

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{16871}}^1$

素因数の和:16918

約数の個数: 16

約数和(自身を含む): 30234624

約数和(自身を除く): 9837585

約数列:

[1, 3, 13, 31, 39, 93, 403, 1209, 16871, 50613, 219323, 523001, 657969, 1569003, 6799013, 20397039]

約数ペア:

[(1, 20397039), (3, 6799013), (13, 1569003), (31, 657969), (39, 523001), (93, 219323), (403, 50613), (1209, 16871)]