640054881

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{3743011}}^1$

素因数の和:3743036

約数の個数: 12

約数和(自身を含む): 973183120

約数和(自身を除く): 333128239

約数列:

[1, 3, 9, 19, 57, 171, 3743011, 11229033, 33687099, 71117209, 213351627, 640054881]

約数ペア:

[(1, 640054881), (3, 213351627), (9, 71117209), (19, 33687099), (57, 11229033), (171, 3743011)]