21003350

素因数分解:

$2^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{9769}}^1$

素因数の和:9824

約数の個数: 24

約数和(自身を含む): 39978840

約数和(自身を除く): 18975490

約数列:

[1, 2, 5, 10, 25, 43, 50, 86, 215, 430, 1075, 2150, 9769, 19538, 48845, 97690, 244225, 420067, 488450, 840134, 2100335, 4200670, 10501675, 21003350]

約数ペア:

[(1, 21003350), (2, 10501675), (5, 4200670), (10, 2100335), (25, 840134), (43, 488450), (50, 420067), (86, 244225), (215, 97690), (430, 48845), (1075, 19538), (2150, 9769)]