19888839

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{107}}^1\times {\mathrm{1087}}^1$

素因数の和:1219

約数の個数: 24

約数和(自身を含む): 30551040

約数和(自身を除く): 10662201

約数列:

[1, 3, 9, 19, 57, 107, 171, 321, 963, 1087, 2033, 3261, 6099, 9783, 18297, 20653, 61959, 116309, 185877, 348927, 1046781, 2209871, 6629613, 19888839]

約数ペア:

[(1, 19888839), (3, 6629613), (9, 2209871), (19, 1046781), (57, 348927), (107, 185877), (171, 116309), (321, 61959), (963, 20653), (1087, 18297), (2033, 9783), (3261, 6099)]