18640041

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{7459}}^1$

素因数の和:7493

約数の個数: 24

約数和(自身を含む): 30615840

約数和(自身を除く): 11975799

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 357, 833, 2499, 7459, 22377, 52213, 126803, 156639, 365491, 380409, 887621, 1096473, 2662863, 6213347, 18640041]

約数ペア:

[(1, 18640041), (3, 6213347), (7, 2662863), (17, 1096473), (21, 887621), (49, 380409), (51, 365491), (119, 156639), (147, 126803), (357, 52213), (833, 22377), (2499, 7459)]