20129490717

素因数分解:

$3^1\times 7^2\times {\mathrm{89}}^1\times {\mathrm{1538599}}^1$

素因数の和:1538705

約数の個数: 24

約数和(自身を含む): 31572072000

約数和(自身を除く): 11442581283

約数列:

[1, 3, 7, 21, 49, 89, 147, 267, 623, 1869, 4361, 13083, 1538599, 4615797, 10770193, 32310579, 75391351, 136935311, 226174053, 410805933, 958547177, 2875641531, 6709830239, 20129490717]

約数ペア:

[(1, 20129490717), (3, 6709830239), (7, 2875641531), (21, 958547177), (49, 410805933), (89, 226174053), (147, 136935311), (267, 75391351), (623, 32310579), (1869, 10770193), (4361, 4615797), (13083, 1538599)]