397210009

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{18959}}^1$

素因数の和:19080

約数の個数: 16

約数和(自身を含む): 471421440

約数和(自身を除く): 74211431

約数列:

[1, 7, 41, 73, 287, 511, 2993, 18959, 20951, 132713, 777319, 1384007, 5441233, 9688049, 56744287, 397210009]

約数ペア:

[(1, 397210009), (7, 56744287), (41, 9688049), (73, 5441233), (287, 1384007), (511, 777319), (2993, 132713), (18959, 20951)]