21491626

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{20161}}^1$

素因数の和:20217

約数の個数: 16

約数和(自身を含む): 35565768

約数和(自身を除く): 14074142

約数列:

[1, 2, 13, 26, 41, 82, 533, 1066, 20161, 40322, 262093, 524186, 826601, 1653202, 10745813, 21491626]

約数ペア:

[(1, 21491626), (2, 10745813), (13, 1653202), (26, 826601), (41, 524186), (82, 262093), (533, 40322), (1066, 20161)]