20451893

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{1759}}^1$

素因数の和:1928

約数の個数: 16

約数和(自身を含む): 25681920

約数和(自身を除く): 5230027

約数列:

[1, 7, 11, 77, 151, 1057, 1661, 1759, 11627, 12313, 19349, 135443, 265609, 1859263, 2921699, 20451893]

約数ペア:

[(1, 20451893), (7, 2921699), (11, 1859263), (77, 265609), (151, 135443), (1057, 19349), (1661, 12313), (1759, 11627)]