21258350

素因数分解:

$2^1\times 5^2\times {\mathrm{37}}^1\times {\mathrm{11491}}^1$

素因数の和:11540

約数の個数: 24

約数和(自身を含む): 40612728

約数和(自身を除く): 19354378

約数列:

[1, 2, 5, 10, 25, 37, 50, 74, 185, 370, 925, 1850, 11491, 22982, 57455, 114910, 287275, 425167, 574550, 850334, 2125835, 4251670, 10629175, 21258350]

約数ペア:

[(1, 21258350), (2, 10629175), (5, 4251670), (10, 2125835), (25, 850334), (37, 574550), (50, 425167), (74, 287275), (185, 114910), (370, 57455), (925, 22982), (1850, 11491)]