21173619

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{21851}}^1$

素因数の和:21890

約数の個数: 16

約数和(自身を含む): 31466880

約数和(自身を除く): 10293261

約数列:

[1, 3, 17, 19, 51, 57, 323, 969, 21851, 65553, 371467, 415169, 1114401, 1245507, 7057873, 21173619]

約数ペア:

[(1, 21173619), (3, 7057873), (17, 1245507), (19, 1114401), (51, 415169), (57, 371467), (323, 65553), (969, 21851)]