639131313

素因数分解:

$3^1\times {\mathrm{139}}^1\times {\mathrm{163}}^1\times {\mathrm{9403}}^1$

素因数の和:9708

約数の個数: 16

約数和(自身を含む): 863663360

約数和(自身を除く): 224532047

約数列:

[1, 3, 139, 163, 417, 489, 9403, 22657, 28209, 67971, 1307017, 1532689, 3921051, 4598067, 213043771, 639131313]

約数ペア:

[(1, 639131313), (3, 213043771), (139, 4598067), (163, 3921051), (417, 1532689), (489, 1307017), (9403, 67971), (22657, 28209)]