209905916

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{1289}}^1\times {\mathrm{3701}}^1$

素因数の和:5005

約数の個数: 24

約数和(自身を含む): 401148720

約数和(自身を除く): 191242804

約数列:

[1, 2, 4, 11, 22, 44, 1289, 2578, 3701, 5156, 7402, 14179, 14804, 28358, 40711, 56716, 81422, 162844, 4770589, 9541178, 19082356, 52476479, 104952958, 209905916]

約数ペア:

[(1, 209905916), (2, 104952958), (4, 52476479), (11, 19082356), (22, 9541178), (44, 4770589), (1289, 162844), (2578, 81422), (3701, 56716), (5156, 40711), (7402, 28358), (14179, 14804)]