20172964

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{15329}}^1$

素因数の和:15387

約数の個数: 24

約数和(自身を含む): 41207040

約数和(自身を除く): 21034076

約数列:

[1, 2, 4, 7, 14, 28, 47, 94, 188, 329, 658, 1316, 15329, 30658, 61316, 107303, 214606, 429212, 720463, 1440926, 2881852, 5043241, 10086482, 20172964]

約数ペア:

[(1, 20172964), (2, 10086482), (4, 5043241), (7, 2881852), (14, 1440926), (28, 720463), (47, 429212), (94, 214606), (188, 107303), (329, 61316), (658, 30658), (1316, 15329)]