1239399

素因数分解:

$3^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{191}}^1$

素因数の和:307

約数の個数: 24

約数和(自身を含む): 2076672

約数和(自身を除く): 837273

約数列:

[1, 3, 7, 9, 21, 63, 103, 191, 309, 573, 721, 927, 1337, 1719, 2163, 4011, 6489, 12033, 19673, 59019, 137711, 177057, 413133, 1239399]

約数ペア:

[(1, 1239399), (3, 413133), (7, 177057), (9, 137711), (21, 59019), (63, 19673), (103, 12033), (191, 6489), (309, 4011), (573, 2163), (721, 1719), (927, 1337)]