18994283

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{113}}^1$

素因数の和:227

約数の個数: 32

約数和(自身を含む): 24952320

約数和(自身を除く): 5958037

約数列:

[1, 7, 11, 37, 59, 77, 113, 259, 407, 413, 649, 791, 1243, 2183, 2849, 4181, 4543, 6667, 8701, 15281, 24013, 29267, 45991, 46669, 73337, 168091, 246679, 321937, 513359, 1726753, 2713469, 18994283]

約数ペア:

[(1, 18994283), (7, 2713469), (11, 1726753), (37, 513359), (59, 321937), (77, 246679), (113, 168091), (259, 73337), (407, 46669), (413, 45991), (649, 29267), (791, 24013), (1243, 15281), (2183, 8701), (2849, 6667), (4181, 4543)]