2019975655

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{213641}}^1$

素因数の和:213738

約数の個数: 16

約数和(自身を含む): 2543194368

約数和(自身を除く): 523218713

約数列:

[1, 5, 31, 61, 155, 305, 1891, 9455, 213641, 1068205, 6622871, 13032101, 33114355, 65160505, 403995131, 2019975655]

約数ペア:

[(1, 2019975655), (5, 403995131), (31, 65160505), (61, 33114355), (155, 13032101), (305, 6622871), (1891, 1068205), (9455, 213641)]