21028306

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{167}}^2$

素因数の和:378

約数の個数: 24

約数和(自身を含む): 35351820

約数和(自身を除く): 14323514

約数列:

[1, 2, 13, 26, 29, 58, 167, 334, 377, 754, 2171, 4342, 4843, 9686, 27889, 55778, 62959, 125918, 362557, 725114, 808781, 1617562, 10514153, 21028306]

約数ペア:

[(1, 21028306), (2, 10514153), (13, 1617562), (26, 808781), (29, 725114), (58, 362557), (167, 125918), (334, 62959), (377, 55778), (754, 27889), (2171, 9686), (4342, 4843)]