20708907

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{491}}^1\times {\mathrm{827}}^1$

素因数の和:1338

約数の個数: 16

約数和(自身を含む): 29331072

約数和(自身を除く): 8622165

約数列:

[1, 3, 17, 51, 491, 827, 1473, 2481, 8347, 14059, 25041, 42177, 406057, 1218171, 6902969, 20708907]

約数ペア:

[(1, 20708907), (3, 6902969), (17, 1218171), (51, 406057), (491, 42177), (827, 25041), (1473, 14059), (2481, 8347)]