21219058

素因数分解:

$2^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{5281}}^1$

素因数の和:5338

約数の個数: 24

約数和(自身を含む): 37935324

約数和(自身を除く): 16716266

約数列:

[1, 2, 7, 14, 41, 49, 82, 98, 287, 574, 2009, 4018, 5281, 10562, 36967, 73934, 216521, 258769, 433042, 517538, 1515647, 3031294, 10609529, 21219058]

約数ペア:

[(1, 21219058), (2, 10609529), (7, 3031294), (14, 1515647), (41, 517538), (49, 433042), (82, 258769), (98, 216521), (287, 73934), (574, 36967), (2009, 10562), (4018, 5281)]