20001828

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{21647}}^1$

素因数の和:21672

約数の個数: 48

約数和(自身を含む): 58189824

約数和(自身を除く): 38187996

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 21, 22, 28, 33, 42, 44, 66, 77, 84, 132, 154, 231, 308, 462, 924, 21647, 43294, 64941, 86588, 129882, 151529, 238117, 259764, 303058, 454587, 476234, 606116, 714351, 909174, 952468, 1428702, 1666819, 1818348, 2857404, 3333638, 5000457, 6667276, 10000914, 20001828]

約数ペア:

[(1, 20001828), (2, 10000914), (3, 6667276), (4, 5000457), (6, 3333638), (7, 2857404), (11, 1818348), (12, 1666819), (14, 1428702), (21, 952468), (22, 909174), (28, 714351), (33, 606116), (42, 476234), (44, 454587), (66, 303058), (77, 259764), (84, 238117), (132, 151529), (154, 129882), (231, 86588), (308, 64941), (462, 43294), (924, 21647)]