21578011

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{4019}}^1$

素因数の和:4098

約数の個数: 16

約数和(自身を含む): 27014400

約数和(自身を除く): 5436389

約数列:

[1, 7, 13, 59, 91, 413, 767, 4019, 5369, 28133, 52247, 237121, 365729, 1659847, 3082573, 21578011]

約数ペア:

[(1, 21578011), (7, 3082573), (13, 1659847), (59, 365729), (91, 237121), (413, 52247), (767, 28133), (4019, 5369)]