18814113

素因数分解:

$3^4\times {\mathrm{359}}^1\times {\mathrm{647}}^1$

素因数の和:1018

約数の個数: 20

約数和(自身を含む): 28226880

約数和(自身を除く): 9412767

約数列:

[1, 3, 9, 27, 81, 359, 647, 1077, 1941, 3231, 5823, 9693, 17469, 29079, 52407, 232273, 696819, 2090457, 6271371, 18814113]

約数ペア:

[(1, 18814113), (3, 6271371), (9, 2090457), (27, 696819), (81, 232273), (359, 52407), (647, 29079), (1077, 17469), (1941, 9693), (3231, 5823)]