54720981

素因数分解:

$3^3\times 7^1\times {\mathrm{419}}^1\times {\mathrm{691}}^1$

素因数の和:1126

約数の個数: 32

約数和(自身を含む): 93004800

約数和(自身を除く): 38283819

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 419, 691, 1257, 2073, 2933, 3771, 4837, 6219, 8799, 11313, 14511, 18657, 26397, 43533, 79191, 130599, 289529, 868587, 2026703, 2605761, 6080109, 7817283, 18240327, 54720981]

約数ペア:

[(1, 54720981), (3, 18240327), (7, 7817283), (9, 6080109), (21, 2605761), (27, 2026703), (63, 868587), (189, 289529), (419, 130599), (691, 79191), (1257, 43533), (2073, 26397), (2933, 18657), (3771, 14511), (4837, 11313), (6219, 8799)]