18740804621

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{65129}}^1$

素因数の和:65285

約数の個数: 32

約数和(自身を含む): 24234612480

約数和(自身を除く): 5493807859

約数列:

[1, 7, 11, 37, 77, 101, 259, 407, 707, 1111, 2849, 3737, 7777, 26159, 41107, 65129, 287749, 455903, 716419, 2409773, 5014933, 6578029, 16868411, 26507503, 46046203, 72358319, 185552521, 243387073, 506508233, 1703709511, 2677257803, 18740804621]

約数ペア:

[(1, 18740804621), (7, 2677257803), (11, 1703709511), (37, 506508233), (77, 243387073), (101, 185552521), (259, 72358319), (407, 46046203), (707, 26507503), (1111, 16868411), (2849, 6578029), (3737, 5014933), (7777, 2409773), (26159, 716419), (41107, 455903), (65129, 287749)]