21731770

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{50539}}^1$

素因数の和:50589

約数の個数: 16

約数和(自身を含む): 40027680

約数和(自身を除く): 18295910

約数列:

[1, 2, 5, 10, 43, 86, 215, 430, 50539, 101078, 252695, 505390, 2173177, 4346354, 10865885, 21731770]

約数ペア:

[(1, 21731770), (2, 10865885), (5, 4346354), (10, 2173177), (43, 505390), (86, 252695), (215, 101078), (430, 50539)]