18861363

素因数分解:

$3^3\times {\mathrm{71}}^1\times {\mathrm{9839}}^1$

素因数の和:9919

約数の個数: 16

約数和(自身を含む): 28339200

約数和(自身を除く): 9477837

約数列:

[1, 3, 9, 27, 71, 213, 639, 1917, 9839, 29517, 88551, 265653, 698569, 2095707, 6287121, 18861363]

約数ペア:

[(1, 18861363), (3, 6287121), (9, 2095707), (27, 698569), (71, 265653), (213, 88551), (639, 29517), (1917, 9839)]