20797029309

素因数分解:

$3^1\times 7^1\times {\mathrm{5479}}^1\times {\mathrm{180751}}^1$

素因数の和:186240

約数の個数: 16

約数和(自身を含む): 31696670720

約数和(自身を除く): 10899641411

約数列:

[1, 3, 7, 21, 5479, 16437, 38353, 115059, 180751, 542253, 1265257, 3795771, 990334729, 2971004187, 6932343103, 20797029309]

約数ペア:

[(1, 20797029309), (3, 6932343103), (7, 2971004187), (21, 990334729), (5479, 3795771), (16437, 1265257), (38353, 542253), (115059, 180751)]