205121214711

素因数分解:

$3^2\times 7^2\times {\mathrm{465127471}}^1$

素因数の和:465127491

約数の個数: 18

約数和(自身を含む): 344659456752

約数和(自身を除く): 139538242041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 465127471, 1395382413, 3255892297, 4186147239, 9767676891, 22791246079, 29303030673, 68373738237, 205121214711]

約数ペア:

[(1, 205121214711), (3, 68373738237), (7, 29303030673), (9, 22791246079), (21, 9767676891), (49, 4186147239), (63, 3255892297), (147, 1395382413), (441, 465127471)]