18447291

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{9623}}^1$

素因数の和:9703

約数の個数: 16

約数和(自身を含む): 27717120

約数和(自身を除く): 9269829

約数列:

[1, 3, 9, 27, 71, 213, 639, 1917, 9623, 28869, 86607, 259821, 683233, 2049699, 6149097, 18447291]

約数ペア:

[(1, 18447291), (3, 6149097), (9, 2049699), (27, 683233), (71, 259821), (213, 86607), (639, 28869), (1917, 9623)]