21397218

素因数分解:

$2^1\times 3^1\times {\mathrm{107}}^1\times {\mathrm{33329}}^1$

素因数の和:33441

約数の個数: 16

約数和(自身を含む): 43195680

約数和(自身を除く): 21798462

約数列:

[1, 2, 3, 6, 107, 214, 321, 642, 33329, 66658, 99987, 199974, 3566203, 7132406, 10698609, 21397218]

約数ペア:

[(1, 21397218), (2, 10698609), (3, 7132406), (6, 3566203), (107, 199974), (214, 99987), (321, 66658), (642, 33329)]