399170018

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{751}}^1\times {\mathrm{20443}}^1$

素因数の和:21209

約数の個数: 16

約数和(自身を含む): 645703296

約数和(自身を除く): 246533278

約数列:

[1, 2, 13, 26, 751, 1502, 9763, 19526, 20443, 40886, 265759, 531518, 15352693, 30705386, 199585009, 399170018]

約数ペア:

[(1, 399170018), (2, 199585009), (13, 30705386), (26, 15352693), (751, 531518), (1502, 265759), (9763, 40886), (19526, 20443)]