18830945

素因数分解:

$5^1\times 7^2\times {\mathrm{101}}^1\times {\mathrm{761}}^1$

素因数の和:881

約数の個数: 24

約数和(自身を含む): 26581608

約数和(自身を除く): 7750663

約数列:

[1, 5, 7, 35, 49, 101, 245, 505, 707, 761, 3535, 3805, 4949, 5327, 24745, 26635, 37289, 76861, 186445, 384305, 538027, 2690135, 3766189, 18830945]

約数ペア:

[(1, 18830945), (5, 3766189), (7, 2690135), (35, 538027), (49, 384305), (101, 186445), (245, 76861), (505, 37289), (707, 26635), (761, 24745), (3535, 5327), (3805, 4949)]