21035885

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19037}}^1$

素因数の和:19072

約数の個数: 16

約数和(自身を含む): 28785456

約数和(自身を除く): 7749571

約数列:

[1, 5, 13, 17, 65, 85, 221, 1105, 19037, 95185, 247481, 323629, 1237405, 1618145, 4207177, 21035885]

約数ペア:

[(1, 21035885), (5, 4207177), (13, 1618145), (17, 1237405), (65, 323629), (85, 247481), (221, 95185), (1105, 19037)]