25080321

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1\times {\mathrm{431}}^1$

素因数の和:621

約数の個数: 32

約数和(自身を含む): 40808448

約数和(自身を除く): 15728127

約数列:

[1, 3, 7, 17, 21, 51, 119, 163, 357, 431, 489, 1141, 1293, 2771, 3017, 3423, 7327, 8313, 9051, 19397, 21981, 51289, 58191, 70253, 153867, 210759, 491771, 1194301, 1475313, 3582903, 8360107, 25080321]

約数ペア:

[(1, 25080321), (3, 8360107), (7, 3582903), (17, 1475313), (21, 1194301), (51, 491771), (119, 210759), (163, 153867), (357, 70253), (431, 58191), (489, 51289), (1141, 21981), (1293, 19397), (2771, 9051), (3017, 8313), (3423, 7327)]