21618321

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{2467}}^1$

素因数の和:2620

約数の個数: 16

約数和(自身を含む): 30326784

約数和(自身を除く): 8708463

約数列:

[1, 3, 23, 69, 127, 381, 2467, 2921, 7401, 8763, 56741, 170223, 313309, 939927, 7206107, 21618321]

約数ペア:

[(1, 21618321), (3, 7206107), (23, 939927), (69, 313309), (127, 170223), (381, 56741), (2467, 8763), (2921, 7401)]