18197319

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{103}}^1\times {\mathrm{179}}^1$

素因数の和:339

約数の個数: 32

約数和(自身を含む): 28753920

約数和(自身を除く): 10556601

約数列:

[1, 3, 7, 21, 47, 103, 141, 179, 309, 329, 537, 721, 987, 1253, 2163, 3759, 4841, 8413, 14523, 18437, 25239, 33887, 55311, 58891, 101661, 129059, 176673, 387177, 866539, 2599617, 6065773, 18197319]

約数ペア:

[(1, 18197319), (3, 6065773), (7, 2599617), (21, 866539), (47, 387177), (103, 176673), (141, 129059), (179, 101661), (309, 58891), (329, 55311), (537, 33887), (721, 25239), (987, 18437), (1253, 14523), (2163, 8413), (3759, 4841)]