18869031

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{193}}^1$

素因数の和:293

約数の個数: 40

約数和(自身を含む): 30422304

約数和(自身を除く): 11553273

約数列:

[1, 3, 9, 17, 27, 51, 71, 81, 153, 193, 213, 459, 579, 639, 1207, 1377, 1737, 1917, 3281, 3621, 5211, 5751, 9843, 10863, 13703, 15633, 29529, 32589, 41109, 88587, 97767, 123327, 232951, 265761, 369981, 698853, 1109943, 2096559, 6289677, 18869031]

約数ペア:

[(1, 18869031), (3, 6289677), (9, 2096559), (17, 1109943), (27, 698853), (51, 369981), (71, 265761), (81, 232951), (153, 123327), (193, 97767), (213, 88587), (459, 41109), (579, 32589), (639, 29529), (1207, 15633), (1377, 13703), (1737, 10863), (1917, 9843), (3281, 5751), (3621, 5211)]