21088107

素因数分解:

$3^4\times {\mathrm{139}}^1\times {\mathrm{1873}}^1$

素因数の和:2024

約数の個数: 20

約数和(自身を含む): 31745560

約数和(自身を除く): 10657453

約数列:

[1, 3, 9, 27, 81, 139, 417, 1251, 1873, 3753, 5619, 11259, 16857, 50571, 151713, 260347, 781041, 2343123, 7029369, 21088107]

約数ペア:

[(1, 21088107), (3, 7029369), (9, 2343123), (27, 781041), (81, 260347), (139, 151713), (417, 50571), (1251, 16857), (1873, 11259), (3753, 5619)]