21022105

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{8741}}^1$

素因数の和:8796

約数の個数: 16

約数和(自身を含む): 27904464

約数和(自身を除く): 6882359

約数列:

[1, 5, 13, 37, 65, 185, 481, 2405, 8741, 43705, 113633, 323417, 568165, 1617085, 4204421, 21022105]

約数ペア:

[(1, 21022105), (5, 4204421), (13, 1617085), (37, 568165), (65, 323417), (185, 113633), (481, 43705), (2405, 8741)]