19500005

素因数分解:

$5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{4253}}^1$

素因数の和:4396

約数の個数: 16

約数和(自身を含む): 26953344

約数和(自身を除く): 7453339

約数列:

[1, 5, 7, 35, 131, 655, 917, 4253, 4585, 21265, 29771, 148855, 557143, 2785715, 3900001, 19500005]

約数ペア:

[(1, 19500005), (5, 3900001), (7, 2785715), (35, 557143), (131, 148855), (655, 29771), (917, 21265), (4253, 4585)]