18641403

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{151}}^1$

素因数の和:240

約数の個数: 48

約数和(自身を含む): 31299840

約数和(自身を除く): 12658437

約数列:

[1, 3, 9, 11, 29, 33, 43, 87, 99, 129, 151, 261, 319, 387, 453, 473, 957, 1247, 1359, 1419, 1661, 2871, 3741, 4257, 4379, 4983, 6493, 11223, 13137, 13717, 14949, 19479, 39411, 41151, 48169, 58437, 71423, 123453, 144507, 188297, 214269, 433521, 564891, 642807, 1694673, 2071267, 6213801, 18641403]

約数ペア:

[(1, 18641403), (3, 6213801), (9, 2071267), (11, 1694673), (29, 642807), (33, 564891), (43, 433521), (87, 214269), (99, 188297), (129, 144507), (151, 123453), (261, 71423), (319, 58437), (387, 48169), (453, 41151), (473, 39411), (957, 19479), (1247, 14949), (1359, 13717), (1419, 13137), (1661, 11223), (2871, 6493), (3741, 4983), (4257, 4379)]