521479

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{79}}^1$

素因数の和:150

約数の個数: 16

約数和(自身を含む): 645120

約数和(自身を除く): 123641

約数列:

[1, 7, 23, 41, 79, 161, 287, 553, 943, 1817, 3239, 6601, 12719, 22673, 74497, 521479]

約数ペア:

[(1, 521479), (7, 74497), (23, 22673), (41, 12719), (79, 6601), (161, 3239), (287, 1817), (553, 943)]