2540889

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1$

素因数の和:171

約数の個数: 40

約数和(自身を含む): 4336640

約数和(自身を除く): 1795751

約数列:

[1, 3, 9, 13, 19, 27, 39, 57, 81, 117, 127, 171, 247, 351, 381, 513, 741, 1053, 1143, 1539, 1651, 2223, 2413, 3429, 4953, 6669, 7239, 10287, 14859, 20007, 21717, 31369, 44577, 65151, 94107, 133731, 195453, 282321, 846963, 2540889]

約数ペア:

[(1, 2540889), (3, 846963), (9, 282321), (13, 195453), (19, 133731), (27, 94107), (39, 65151), (57, 44577), (81, 31369), (117, 21717), (127, 20007), (171, 14859), (247, 10287), (351, 7239), (381, 6669), (513, 4953), (741, 3429), (1053, 2413), (1143, 2223), (1539, 1651)]