19912355

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{317}}^1\times {\mathrm{739}}^1$

素因数の和:1078

約数の個数: 16

約数和(自身を含む): 25414560

約数和(自身を除く): 5502205

約数列:

[1, 5, 17, 85, 317, 739, 1585, 3695, 5389, 12563, 26945, 62815, 234263, 1171315, 3982471, 19912355]

約数ペア:

[(1, 19912355), (5, 3982471), (17, 1171315), (85, 234263), (317, 62815), (739, 26945), (1585, 12563), (3695, 5389)]