19749663

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{10601}}^1$

素因数の和:10636

約数の個数: 20

約数和(自身を含む): 30788208

約数和(自身を除く): 11038545

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 621, 1863, 10601, 31803, 95409, 243823, 286227, 731469, 858681, 2194407, 6583221, 19749663]

約数ペア:

[(1, 19749663), (3, 6583221), (9, 2194407), (23, 858681), (27, 731469), (69, 286227), (81, 243823), (207, 95409), (621, 31803), (1863, 10601)]