2021656825

素因数分解:

$5^2\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{40013}}^1$

素因数の和:40113

約数の個数: 24

約数和(自身を含む): 2619796608

約数和(自身を除く): 598139783

約数列:

[1, 5, 25, 43, 47, 215, 235, 1075, 1175, 2021, 10105, 40013, 50525, 200065, 1000325, 1720559, 1880611, 8602795, 9403055, 43013975, 47015275, 80866273, 404331365, 2021656825]

約数ペア:

[(1, 2021656825), (5, 404331365), (25, 80866273), (43, 47015275), (47, 43013975), (215, 9403055), (235, 8602795), (1075, 1880611), (1175, 1720559), (2021, 1000325), (10105, 200065), (40013, 50525)]