21076909

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{22639}}^1$

素因数の和:22672

約数の個数: 12

約数和(自身を含む): 25809600

約数和(自身を除く): 4732691

約数列:

[1, 7, 19, 49, 133, 931, 22639, 158473, 430141, 1109311, 3010987, 21076909]

約数ペア:

[(1, 21076909), (7, 3010987), (19, 1109311), (49, 430141), (133, 158473), (931, 22639)]