19406709

素因数分解:

$3^6\times 7^1\times {\mathrm{3803}}^1$

素因数の和:3828

約数の個数: 28

約数和(自身を含む): 33262176

約数和(自身を除く): 13855467

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 729, 1701, 3803, 5103, 11409, 26621, 34227, 79863, 102681, 239589, 308043, 718767, 924129, 2156301, 2772387, 6468903, 19406709]

約数ペア:

[(1, 19406709), (3, 6468903), (7, 2772387), (9, 2156301), (21, 924129), (27, 718767), (63, 308043), (81, 239589), (189, 102681), (243, 79863), (567, 34227), (729, 26621), (1701, 11409), (3803, 5103)]