20178949

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{4583}}^1$

素因数の和:4644

約数の個数: 16

約数和(自身を含む): 25083648

約数和(自身を除く): 4904699

約数列:

[1, 7, 17, 37, 119, 259, 629, 4403, 4583, 32081, 77911, 169571, 545377, 1186997, 2882707, 20178949]

約数ペア:

[(1, 20178949), (7, 2882707), (17, 1186997), (37, 545377), (119, 169571), (259, 77911), (629, 32081), (4403, 4583)]