18996876891

素因数分解:

$3^3\times {\mathrm{163}}^1\times {\mathrm{277}}^1\times {\mathrm{15583}}^1$

素因数の和:16032

約数の個数: 32

約数和(自身を含む): 28420229120

約数和(自身を除く): 9423352229

約数列:

[1, 3, 9, 27, 163, 277, 489, 831, 1467, 2493, 4401, 7479, 15583, 45151, 46749, 135453, 140247, 406359, 420741, 1219077, 2540029, 4316491, 7620087, 12949473, 22860261, 38848419, 68580783, 116545257, 703588033, 2110764099, 6332292297, 18996876891]

約数ペア:

[(1, 18996876891), (3, 6332292297), (9, 2110764099), (27, 703588033), (163, 116545257), (277, 68580783), (489, 38848419), (831, 22860261), (1467, 12949473), (2493, 7620087), (4401, 4316491), (7479, 2540029), (15583, 1219077), (45151, 420741), (46749, 406359), (135453, 140247)]