1990689987

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{272959}}^1$

素因数の和:273003

約数の個数: 32

約数和(自身を含む): 3301724160

約数和(自身を除く): 1311034173

約数列:

[1, 3, 11, 13, 17, 33, 39, 51, 143, 187, 221, 429, 561, 663, 2431, 7293, 272959, 818877, 3002549, 3548467, 4640303, 9007647, 10645401, 13920909, 39033137, 51043333, 60323939, 117099411, 153129999, 180971817, 663563329, 1990689987]

約数ペア:

[(1, 1990689987), (3, 663563329), (11, 180971817), (13, 153129999), (17, 117099411), (33, 60323939), (39, 51043333), (51, 39033137), (143, 13920909), (187, 10645401), (221, 9007647), (429, 4640303), (561, 3548467), (663, 3002549), (2431, 818877), (7293, 272959)]