20989854

素因数分解:

$2^1\times 3^5\times {\mathrm{43189}}^1$

素因数の和:43206

約数の個数: 24

約数和(自身を含む): 47163480

約数和(自身を除く): 26173626

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 243, 486, 43189, 86378, 129567, 259134, 388701, 777402, 1166103, 2332206, 3498309, 6996618, 10494927, 20989854]

約数ペア:

[(1, 20989854), (2, 10494927), (3, 6996618), (6, 3498309), (9, 2332206), (18, 1166103), (27, 777402), (54, 388701), (81, 259134), (162, 129567), (243, 86378), (486, 43189)]