21498217

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{1093}}^1$

素因数の和:1212

約数の個数: 16

約数和(自身を含む): 24811920

約数和(自身を除く): 3313703

約数列:

[1, 13, 17, 89, 221, 1093, 1157, 1513, 14209, 18581, 19669, 97277, 241553, 1264601, 1653709, 21498217]

約数ペア:

[(1, 21498217), (13, 1653709), (17, 1264601), (89, 241553), (221, 97277), (1093, 19669), (1157, 18581), (1513, 14209)]