21053913

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{139}}^1\times {\mathrm{1741}}^1$

素因数の和:1912

約数の個数: 16

約数和(自身を含む): 29265600

約数和(自身を除く): 8211687

約数列:

[1, 3, 29, 87, 139, 417, 1741, 4031, 5223, 12093, 50489, 151467, 241999, 725997, 7017971, 21053913]

約数ペア:

[(1, 21053913), (3, 7017971), (29, 725997), (87, 241999), (139, 151467), (417, 50489), (1741, 12093), (4031, 5223)]