20285167

素因数分解:

$7^2\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{107}}^1$

素因数の和:247

約数の個数: 24

約数和(自身を含む): 24599376

約数和(自身を除く): 4314209

約数列:

[1, 7, 49, 53, 73, 107, 371, 511, 749, 2597, 3577, 3869, 5243, 5671, 7811, 27083, 39697, 54677, 189581, 277879, 382739, 413983, 2897881, 20285167]

約数ペア:

[(1, 20285167), (7, 2897881), (49, 413983), (53, 382739), (73, 277879), (107, 189581), (371, 54677), (511, 39697), (749, 27083), (2597, 7811), (3577, 5671), (3869, 5243)]