21712850

素因数分解:

$2^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{10099}}^1$

素因数の和:10154

約数の個数: 24

約数和(自身を含む): 41329200

約数和(自身を除く): 19616350

約数列:

[1, 2, 5, 10, 25, 43, 50, 86, 215, 430, 1075, 2150, 10099, 20198, 50495, 100990, 252475, 434257, 504950, 868514, 2171285, 4342570, 10856425, 21712850]

約数ペア:

[(1, 21712850), (2, 10856425), (5, 4342570), (10, 2171285), (25, 868514), (43, 504950), (50, 434257), (86, 252475), (215, 100990), (430, 50495), (1075, 20198), (2150, 10099)]