18730809

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{2207}}^1$

素因数の和:2277

約数の個数: 24

約数和(自身を含む): 28933632

約数和(自身を除く): 10202823

約数列:

[1, 3, 9, 23, 41, 69, 123, 207, 369, 943, 2207, 2829, 6621, 8487, 19863, 50761, 90487, 152283, 271461, 456849, 814383, 2081201, 6243603, 18730809]

約数ペア:

[(1, 18730809), (3, 6243603), (9, 2081201), (23, 814383), (41, 456849), (69, 271461), (123, 152283), (207, 90487), (369, 50761), (943, 19863), (2207, 8487), (2829, 6621)]