21776275

素因数分解:

$5^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{431}}^1$

素因数の和:531

約数の個数: 24

約数和(自身を含む): 28283904

約数和(自身を除く): 6507629

約数列:

[1, 5, 25, 43, 47, 215, 235, 431, 1075, 1175, 2021, 2155, 10105, 10775, 18533, 20257, 50525, 92665, 101285, 463325, 506425, 871051, 4355255, 21776275]

約数ペア:

[(1, 21776275), (5, 4355255), (25, 871051), (43, 506425), (47, 463325), (215, 101285), (235, 92665), (431, 50525), (1075, 20257), (1175, 18533), (2021, 10775), (2155, 10105)]