20155406019

素因数分解:

$3^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{6904901}}^1$

素因数の和:6905050

約数の個数: 16

約数和(自身を含む): 30933960960

約数和(自身を除く): 10778554941

約数列:

[1, 3, 7, 21, 139, 417, 973, 2919, 6904901, 20714703, 48334307, 145002921, 959781239, 2879343717, 6718468673, 20155406019]

約数ペア:

[(1, 20155406019), (3, 6718468673), (7, 2879343717), (21, 959781239), (139, 145002921), (417, 48334307), (973, 20714703), (2919, 6904901)]