20502356

素因数分解:

$2^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{7109}}^1$

素因数の和:7223

約数の個数: 24

約数和(自身を含む): 41408640

約数和(自身を除く): 20906284

約数列:

[1, 2, 4, 7, 14, 28, 103, 206, 412, 721, 1442, 2884, 7109, 14218, 28436, 49763, 99526, 199052, 732227, 1464454, 2928908, 5125589, 10251178, 20502356]

約数ペア:

[(1, 20502356), (2, 10251178), (4, 5125589), (7, 2928908), (14, 1464454), (28, 732227), (103, 199052), (206, 99526), (412, 49763), (721, 28436), (1442, 14218), (2884, 7109)]