20747859

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{617}}^1\times {\mathrm{1019}}^1$

素因数の和:1650

約数の個数: 16

約数和(自身を含む): 30257280

約数和(自身を除く): 9509421

約数列:

[1, 3, 11, 33, 617, 1019, 1851, 3057, 6787, 11209, 20361, 33627, 628723, 1886169, 6915953, 20747859]

約数ペア:

[(1, 20747859), (3, 6915953), (11, 1886169), (33, 628723), (617, 33627), (1019, 20361), (1851, 11209), (3057, 6787)]