20311918

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{647}}^1\times {\mathrm{1427}}^1$

素因数の和:2087

約数の個数: 16

約数和(自身を含む): 33312384

約数和(自身を除く): 13000466

約数列:

[1, 2, 11, 22, 647, 1294, 1427, 2854, 7117, 14234, 15697, 31394, 923269, 1846538, 10155959, 20311918]

約数ペア:

[(1, 20311918), (2, 10155959), (11, 1846538), (22, 923269), (647, 31394), (1294, 15697), (1427, 14234), (2854, 7117)]