21891891597

素因数分解:

$3^1\times {\mathrm{139}}^1\times {\mathrm{641}}^1\times {\mathrm{81901}}^1$

素因数の和:82684

約数の個数: 16

約数和(自身を含む): 29445407040

約数和(自身を除く): 7553515443

約数列:

[1, 3, 139, 417, 641, 1923, 81901, 89099, 245703, 267297, 11384239, 34152717, 52498541, 157495623, 7297297199, 21891891597]

約数ペア:

[(1, 21891891597), (3, 7297297199), (139, 157495623), (417, 52498541), (641, 34152717), (1923, 11384239), (81901, 267297), (89099, 245703)]