20817231

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{17747}}^1$

素因数の和:17790

約数の個数: 16

約数和(自身を含む): 30668544

約数和(自身を除く): 9851313

約数列:

[1, 3, 17, 23, 51, 69, 391, 1173, 17747, 53241, 301699, 408181, 905097, 1224543, 6939077, 20817231]

約数ペア:

[(1, 20817231), (3, 6939077), (17, 1224543), (23, 905097), (51, 408181), (69, 301699), (391, 53241), (1173, 17747)]