18445563

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{9901}}^1$

素因数の和:9936

約数の個数: 20

約数和(自身を含む): 28755408

約数和(自身を除く): 10309845

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 621, 1863, 9901, 29703, 89109, 227723, 267327, 683169, 801981, 2049507, 6148521, 18445563]

約数ペア:

[(1, 18445563), (3, 6148521), (9, 2049507), (23, 801981), (27, 683169), (69, 267327), (81, 227723), (207, 89109), (621, 29703), (1863, 9901)]