20563521

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{4483}}^1$

素因数の和:4636

約数の個数: 16

約数和(自身を含む): 30132480

約数和(自身を除く): 9568959

約数列:

[1, 3, 11, 33, 139, 417, 1529, 4483, 4587, 13449, 49313, 147939, 623137, 1869411, 6854507, 20563521]

約数ペア:

[(1, 20563521), (3, 6854507), (11, 1869411), (33, 623137), (139, 147939), (417, 49313), (1529, 13449), (4483, 4587)]