20666319

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{307}}^1\times {\mathrm{1181}}^1$

素因数の和:1510

約数の個数: 16

約数和(自身を含む): 29124480

約数和(自身を除く): 8458161

約数列:

[1, 3, 19, 57, 307, 921, 1181, 3543, 5833, 17499, 22439, 67317, 362567, 1087701, 6888773, 20666319]

約数ペア:

[(1, 20666319), (3, 6888773), (19, 1087701), (57, 362567), (307, 67317), (921, 22439), (1181, 17499), (3543, 5833)]