21216754

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{13831}}^1$

素因数の和:13905

約数の個数: 16

約数和(自身を含む): 34856640

約数和(自身を除く): 13639886

約数列:

[1, 2, 13, 26, 59, 118, 767, 1534, 13831, 27662, 179803, 359606, 816029, 1632058, 10608377, 21216754]

約数ペア:

[(1, 21216754), (2, 10608377), (13, 1632058), (26, 816029), (59, 359606), (118, 179803), (767, 27662), (1534, 13831)]