20128407

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{37}}^2$

素因数の和:132

約数の個数: 36

約数和(自身を含む): 30897720

約数和(自身を除く): 10769313

約数列:

[1, 3, 13, 29, 37, 39, 87, 111, 169, 377, 481, 507, 1073, 1131, 1369, 1443, 3219, 4107, 4901, 6253, 13949, 14703, 17797, 18759, 39701, 41847, 53391, 119103, 181337, 231361, 516113, 544011, 694083, 1548339, 6709469, 20128407]

約数ペア:

[(1, 20128407), (3, 6709469), (13, 1548339), (29, 694083), (37, 544011), (39, 516113), (87, 231361), (111, 181337), (169, 119103), (377, 53391), (481, 41847), (507, 39701), (1073, 18759), (1131, 17797), (1369, 14703), (1443, 13949), (3219, 6253), (4107, 4901)]