20811938

素因数分解:

$2^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{16703}}^1$

素因数の和:16801

約数の個数: 16

約数和(自身を含む): 36080640

約数和(自身を除く): 15268702

約数列:

[1, 2, 7, 14, 89, 178, 623, 1246, 16703, 33406, 116921, 233842, 1486567, 2973134, 10405969, 20811938]

約数ペア:

[(1, 20811938), (2, 10405969), (7, 2973134), (14, 1486567), (89, 233842), (178, 116921), (623, 33406), (1246, 16703)]