20389624612

素因数分解:

$2^2\times 7^2\times {\mathrm{211}}^1\times {\mathrm{493027}}^1$

素因数の和:493256

約数の個数: 36

約数和(自身を含む): 41704252464

約数和(自身を除く): 21314627852

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 211, 422, 844, 1477, 2954, 5908, 10339, 20678, 41356, 493027, 986054, 1972108, 3451189, 6902378, 13804756, 24158323, 48316646, 96633292, 104028697, 208057394, 416114788, 728200879, 1456401758, 2912803516, 5097406153, 10194812306, 20389624612]

約数ペア:

[(1, 20389624612), (2, 10194812306), (4, 5097406153), (7, 2912803516), (14, 1456401758), (28, 728200879), (49, 416114788), (98, 208057394), (196, 104028697), (211, 96633292), (422, 48316646), (844, 24158323), (1477, 13804756), (2954, 6902378), (5908, 3451189), (10339, 1972108), (20678, 986054), (41356, 493027)]