18798479

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{181}}^1\times {\mathrm{401}}^1$

素因数の和:626

約数の個数: 16

約数和(自身を含む): 22241856

約数和(自身を除く): 3443377

約数列:

[1, 7, 37, 181, 259, 401, 1267, 2807, 6697, 14837, 46879, 72581, 103859, 508067, 2685497, 18798479]

約数ペア:

[(1, 18798479), (7, 2685497), (37, 508067), (181, 103859), (259, 72581), (401, 46879), (1267, 14837), (2807, 6697)]