20515938

素因数分解:

$2^1\times 3^1\times {\mathrm{521}}^1\times {\mathrm{6563}}^1$

素因数の和:7089

約数の個数: 16

約数和(自身を含む): 41116896

約数和(自身を除く): 20600958

約数列:

[1, 2, 3, 6, 521, 1042, 1563, 3126, 6563, 13126, 19689, 39378, 3419323, 6838646, 10257969, 20515938]

約数ペア:

[(1, 20515938), (2, 10257969), (3, 6838646), (6, 3419323), (521, 39378), (1042, 19689), (1563, 13126), (3126, 6563)]