20697842

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{11909}}^1$

素因数の和:12001

約数の個数: 16

約数和(自身を含む): 34300800

約数和(自身を除く): 13602958

約数列:

[1, 2, 11, 22, 79, 158, 869, 1738, 11909, 23818, 130999, 261998, 940811, 1881622, 10348921, 20697842]

約数ペア:

[(1, 20697842), (2, 10348921), (11, 1881622), (22, 940811), (79, 261998), (158, 130999), (869, 23818), (1738, 11909)]