39979121

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{601}}^1$

素因数の和:681

約数の個数: 32

約数和(自身を含む): 53399808

約数和(自身を除く): 13420687

約数列:

[1, 7, 13, 17, 43, 91, 119, 221, 301, 559, 601, 731, 1547, 3913, 4207, 5117, 7813, 9503, 10217, 25843, 54691, 66521, 71519, 132821, 180901, 335959, 439331, 929747, 2351713, 3075317, 5711303, 39979121]

約数ペア:

[(1, 39979121), (7, 5711303), (13, 3075317), (17, 2351713), (43, 929747), (91, 439331), (119, 335959), (221, 180901), (301, 132821), (559, 71519), (601, 66521), (731, 54691), (1547, 25843), (3913, 10217), (4207, 9503), (5117, 7813)]