21476540

素因数分解:

$2^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{4493}}^1$

素因数の和:4741

約数の個数: 24

約数和(自身を含む): 45299520

約数和(自身を除く): 23822980

約数列:

[1, 2, 4, 5, 10, 20, 239, 478, 956, 1195, 2390, 4493, 4780, 8986, 17972, 22465, 44930, 89860, 1073827, 2147654, 4295308, 5369135, 10738270, 21476540]

約数ペア:

[(1, 21476540), (2, 10738270), (4, 5369135), (5, 4295308), (10, 2147654), (20, 1073827), (239, 89860), (478, 44930), (956, 22465), (1195, 17972), (2390, 8986), (4493, 4780)]