20861529

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{1789}}^1$

素因数の和:1841

約数の個数: 24

約数和(自身を含む): 31446720

約数和(自身を除く): 10585191

約数列:

[1, 3, 13, 23, 39, 69, 169, 299, 507, 897, 1789, 3887, 5367, 11661, 23257, 41147, 69771, 123441, 302341, 534911, 907023, 1604733, 6953843, 20861529]

約数ペア:

[(1, 20861529), (3, 6953843), (13, 1604733), (23, 907023), (39, 534911), (69, 302341), (169, 123441), (299, 69771), (507, 41147), (897, 23257), (1789, 11661), (3887, 5367)]