31326291

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{491}}^1$

素因数の和:656

約数の個数: 32

約数和(自身を含む): 49593600

約数和(自身を除く): 18267309

約数列:

[1, 3, 9, 17, 27, 51, 139, 153, 417, 459, 491, 1251, 1473, 2363, 3753, 4419, 7089, 8347, 13257, 21267, 25041, 63801, 68249, 75123, 204747, 225369, 614241, 1160233, 1842723, 3480699, 10442097, 31326291]

約数ペア:

[(1, 31326291), (3, 10442097), (9, 3480699), (17, 1842723), (27, 1160233), (51, 614241), (139, 225369), (153, 204747), (417, 75123), (459, 68249), (491, 63801), (1251, 25041), (1473, 21267), (2363, 13257), (3753, 8347), (4419, 7089)]