78487209

素因数分解:

$3^2\times {\mathrm{131}}^1\times {\mathrm{66571}}^1$

素因数の和:66708

約数の個数: 12

約数和(自身を含む): 114237552

約数和(自身を除く): 35750343

約数列:

[1, 3, 9, 131, 393, 1179, 66571, 199713, 599139, 8720801, 26162403, 78487209]

約数ペア:

[(1, 78487209), (3, 26162403), (9, 8720801), (131, 599139), (393, 199713), (1179, 66571)]