20128525767

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{16815811}}^1$

素因数の和:16815843

約数の個数: 24

約数和(自身を含む): 34976888960

約数和(自身を除く): 14848363193

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 133, 171, 399, 1197, 16815811, 50447433, 117710677, 151342299, 319500409, 353132031, 958501227, 1059396093, 2236502863, 2875503681, 6709508589, 20128525767]

約数ペア:

[(1, 20128525767), (3, 6709508589), (7, 2875503681), (9, 2236502863), (19, 1059396093), (21, 958501227), (57, 353132031), (63, 319500409), (133, 151342299), (171, 117710677), (399, 50447433), (1197, 16815811)]