21855316

素因数分解:

$2^2\times 7^1\times {\mathrm{631}}^1\times {\mathrm{1237}}^1$

素因数の和:1879

約数の個数: 24

約数和(自身を含む): 43815296

約数和(自身を除く): 21959980

約数列:

[1, 2, 4, 7, 14, 28, 631, 1237, 1262, 2474, 2524, 4417, 4948, 8659, 8834, 17318, 17668, 34636, 780547, 1561094, 3122188, 5463829, 10927658, 21855316]

約数ペア:

[(1, 21855316), (2, 10927658), (4, 5463829), (7, 3122188), (14, 1561094), (28, 780547), (631, 34636), (1237, 17668), (1262, 17318), (2474, 8834), (2524, 8659), (4417, 4948)]