21168100

素因数分解:

$2^2\times 5^2\times {\mathrm{211681}}^1$

素因数の和:211695

約数の個数: 18

約数和(自身を含む): 45934994

約数和(自身を除く): 24766894

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 211681, 423362, 846724, 1058405, 2116810, 4233620, 5292025, 10584050, 21168100]

約数ペア:

[(1, 21168100), (2, 10584050), (4, 5292025), (5, 4233620), (10, 2116810), (20, 1058405), (25, 846724), (50, 423362), (100, 211681)]