1331001

素因数分解:

$3^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{571}}^1$

素因数の和:621

約数の個数: 24

約数和(自身を含む): 2260544

約数和(自身を除く): 929543

約数列:

[1, 3, 7, 9, 21, 37, 63, 111, 259, 333, 571, 777, 1713, 2331, 3997, 5139, 11991, 21127, 35973, 63381, 147889, 190143, 443667, 1331001]

約数ペア:

[(1, 1331001), (3, 443667), (7, 190143), (9, 147889), (21, 63381), (37, 35973), (63, 21127), (111, 11991), (259, 5139), (333, 3997), (571, 2331), (777, 1713)]