20111715

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1109}}^1$

素因数の和:1164

約数の個数: 48

約数和(自身を含む): 38787840

約数和(自身を除く): 18676125

約数列:

[1, 3, 5, 9, 13, 15, 31, 39, 45, 65, 93, 117, 155, 195, 279, 403, 465, 585, 1109, 1209, 1395, 2015, 3327, 3627, 5545, 6045, 9981, 14417, 16635, 18135, 34379, 43251, 49905, 72085, 103137, 129753, 171895, 216255, 309411, 446927, 515685, 648765, 1340781, 1547055, 2234635, 4022343, 6703905, 20111715]

約数ペア:

[(1, 20111715), (3, 6703905), (5, 4022343), (9, 2234635), (13, 1547055), (15, 1340781), (31, 648765), (39, 515685), (45, 446927), (65, 309411), (93, 216255), (117, 171895), (155, 129753), (195, 103137), (279, 72085), (403, 49905), (465, 43251), (585, 34379), (1109, 18135), (1209, 16635), (1395, 14417), (2015, 9981), (3327, 6045), (3627, 5545)]