18953439

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{223}}^1\times {\mathrm{691}}^1$

素因数の和:958

約数の個数: 16

約数和(自身を含む): 26041344

約数和(自身を除く): 7087905

約数列:

[1, 3, 41, 123, 223, 669, 691, 2073, 9143, 27429, 28331, 84993, 154093, 462279, 6317813, 18953439]

約数ペア:

[(1, 18953439), (3, 6317813), (41, 462279), (123, 154093), (223, 84993), (669, 28331), (691, 27429), (2073, 9143)]