21710013

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{17957}}^1$

素因数の和:18004

約数の個数: 16

約数和(自身を含む): 32180736

約数和(自身を除く): 10470723

約数列:

[1, 3, 13, 31, 39, 93, 403, 1209, 17957, 53871, 233441, 556667, 700323, 1670001, 7236671, 21710013]

約数ペア:

[(1, 21710013), (3, 7236671), (13, 1670001), (31, 700323), (39, 556667), (93, 233441), (403, 53871), (1209, 17957)]