21276978

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{154181}}^1$

素因数の和:154209

約数の個数: 16

約数和(自身を含む): 44404416

約数和(自身を除く): 23127438

約数列:

[1, 2, 3, 6, 23, 46, 69, 138, 154181, 308362, 462543, 925086, 3546163, 7092326, 10638489, 21276978]

約数ペア:

[(1, 21276978), (2, 10638489), (3, 7092326), (6, 3546163), (23, 925086), (46, 462543), (69, 308362), (138, 154181)]