19406871

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{947}}^1$

素因数の和:993

約数の個数: 40

約数和(自身を含む): 33035904

約数和(自身を除く): 13629033

約数列:

[1, 3, 9, 11, 23, 27, 33, 69, 81, 99, 207, 253, 297, 621, 759, 891, 947, 1863, 2277, 2841, 6831, 8523, 10417, 20493, 21781, 25569, 31251, 65343, 76707, 93753, 196029, 239591, 281259, 588087, 718773, 843777, 1764261, 2156319, 6468957, 19406871]

約数ペア:

[(1, 19406871), (3, 6468957), (9, 2156319), (11, 1764261), (23, 843777), (27, 718773), (33, 588087), (69, 281259), (81, 239591), (99, 196029), (207, 93753), (253, 76707), (297, 65343), (621, 31251), (759, 25569), (891, 21781), (947, 20493), (1863, 10417), (2277, 8523), (2841, 6831)]