18181822

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{293}}^1$

素因数の和:408

約数の個数: 32

約数和(自身を含む): 30481920

約数和(自身を除く): 12300098

約数列:

[1, 2, 19, 23, 38, 46, 71, 142, 293, 437, 586, 874, 1349, 1633, 2698, 3266, 5567, 6739, 11134, 13478, 20803, 31027, 41606, 62054, 128041, 256082, 395257, 478469, 790514, 956938, 9090911, 18181822]

約数ペア:

[(1, 18181822), (2, 9090911), (19, 956938), (23, 790514), (38, 478469), (46, 395257), (71, 256082), (142, 128041), (293, 62054), (437, 41606), (586, 31027), (874, 20803), (1349, 13478), (1633, 11134), (2698, 6739), (3266, 5567)]