201991041

素因数分解:

$3^2\times 7^1\times {\mathrm{83}}^1\times {\mathrm{38629}}^1$

素因数の和:38725

約数の個数: 24

約数和(自身を含む): 337471680

約数和(自身を除く): 135480639

約数列:

[1, 3, 7, 9, 21, 63, 83, 249, 581, 747, 1743, 5229, 38629, 115887, 270403, 347661, 811209, 2433627, 3206207, 9618621, 22443449, 28855863, 67330347, 201991041]

約数ペア:

[(1, 201991041), (3, 67330347), (7, 28855863), (9, 22443449), (21, 9618621), (63, 3206207), (83, 2433627), (249, 811209), (581, 347661), (747, 270403), (1743, 115887), (5229, 38629)]