20125209

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{2851}}^1$

素因数の和:3048

約数の個数: 16

約数和(自身を含む): 29067584

約数和(自身を除く): 8942375

約数列:

[1, 3, 13, 39, 181, 543, 2353, 2851, 7059, 8553, 37063, 111189, 516031, 1548093, 6708403, 20125209]

約数ペア:

[(1, 20125209), (3, 6708403), (13, 1548093), (39, 516031), (181, 111189), (543, 37063), (2353, 8553), (2851, 7059)]