40209981

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{691}}^1$

素因数の和:881

約数の個数: 32

約数和(自身を含む): 65369088

約数和(自身を除く): 25159107

約数列:

[1, 3, 7, 17, 21, 51, 119, 163, 357, 489, 691, 1141, 2073, 2771, 3423, 4837, 8313, 11747, 14511, 19397, 35241, 58191, 82229, 112633, 246687, 337899, 788431, 1914761, 2365293, 5744283, 13403327, 40209981]

約数ペア:

[(1, 40209981), (3, 13403327), (7, 5744283), (17, 2365293), (21, 1914761), (51, 788431), (119, 337899), (163, 246687), (357, 112633), (489, 82229), (691, 58191), (1141, 35241), (2073, 19397), (2771, 14511), (3423, 11747), (4837, 8313)]