21688645

素因数分解:

$5^1\times {\mathrm{11}}^3\times {\mathrm{3259}}^1$

素因数の和:3297

約数の個数: 16

約数和(自身を含む): 28635840

約数和(自身を除く): 6947195

約数列:

[1, 5, 11, 55, 121, 605, 1331, 3259, 6655, 16295, 35849, 179245, 394339, 1971695, 4337729, 21688645]

約数ペア:

[(1, 21688645), (5, 4337729), (11, 1971695), (55, 394339), (121, 179245), (605, 35849), (1331, 16295), (3259, 6655)]