21055718

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{9739}}^1$

素因数の和:9811

約数の個数: 16

約数和(自身を含む): 33661440

約数和(自身を除く): 12605722

約数列:

[1, 2, 23, 46, 47, 94, 1081, 2162, 9739, 19478, 223997, 447994, 457733, 915466, 10527859, 21055718]

約数ペア:

[(1, 21055718), (2, 10527859), (23, 915466), (46, 457733), (47, 447994), (94, 223997), (1081, 19478), (2162, 9739)]