20470807

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{191}}^1\times {\mathrm{251}}^1$

素因数の和:510

約数の個数: 16

約数和(自身を含む): 23998464

約数和(自身を除く): 3527657

約数列:

[1, 7, 61, 191, 251, 427, 1337, 1757, 11651, 15311, 47941, 81557, 107177, 335587, 2924401, 20470807]

約数ペア:

[(1, 20470807), (7, 2924401), (61, 335587), (191, 107177), (251, 81557), (427, 47941), (1337, 15311), (1757, 11651)]