19747745

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{2143}}^1$

素因数の和:2264

約数の個数: 16

約数和(自身を含む): 25213440

約数和(自身を除く): 5465695

約数列:

[1, 5, 19, 95, 97, 485, 1843, 2143, 9215, 10715, 40717, 203585, 207871, 1039355, 3949549, 19747745]

約数ペア:

[(1, 19747745), (5, 3949549), (19, 1039355), (95, 207871), (97, 203585), (485, 40717), (1843, 10715), (2143, 9215)]