21838020

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{363967}}^1$

素因数の和:363979

約数の個数: 24

約数和(自身を含む): 61146624

約数和(自身を除く): 39308604

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 363967, 727934, 1091901, 1455868, 1819835, 2183802, 3639670, 4367604, 5459505, 7279340, 10919010, 21838020]

約数ペア:

[(1, 21838020), (2, 10919010), (3, 7279340), (4, 5459505), (5, 4367604), (6, 3639670), (10, 2183802), (12, 1819835), (15, 1455868), (20, 1091901), (30, 727934), (60, 363967)]