28704907

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{3691}}^1$

素因数の和:3810

約数の個数: 16

約数和(自身を含む): 36152064

約数和(自身を除く): 7447157

約数列:

[1, 7, 11, 77, 101, 707, 1111, 3691, 7777, 25837, 40601, 284207, 372791, 2609537, 4100701, 28704907]

約数ペア:

[(1, 28704907), (7, 4100701), (11, 2609537), (77, 372791), (101, 284207), (707, 40601), (1111, 25837), (3691, 7777)]