18875311

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{6691}}^1$

素因数の和:6742

約数の個数: 16

約数和(自身を含む): 23984128

約数和(自身を除く): 5108817

約数列:

[1, 7, 13, 31, 91, 217, 403, 2821, 6691, 46837, 86983, 207421, 608881, 1451947, 2696473, 18875311]

約数ペア:

[(1, 18875311), (7, 2696473), (13, 1451947), (31, 608881), (91, 207421), (217, 86983), (403, 46837), (2821, 6691)]