19827311

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{241}}^1$

素因数の和:351

約数の個数: 24

約数和(自身を含む): 24498144

約数和(自身を除く): 4670833

約数列:

[1, 7, 23, 49, 73, 161, 241, 511, 1127, 1679, 1687, 3577, 5543, 11753, 11809, 17593, 38801, 82271, 123151, 271607, 404639, 862057, 2832473, 19827311]

約数ペア:

[(1, 19827311), (7, 2832473), (23, 862057), (49, 404639), (73, 271607), (161, 123151), (241, 82271), (511, 38801), (1127, 17593), (1679, 11809), (1687, 11753), (3577, 5543)]