18187983

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{149}}^1$

素因数の和:309

約数の個数: 40

約数和(自身を含む): 30056400

約数和(自身を除く): 11868417

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 137, 149, 297, 411, 447, 891, 1233, 1341, 1507, 1639, 3699, 4023, 4521, 4917, 11097, 12069, 13563, 14751, 20413, 40689, 44253, 61239, 122067, 132759, 183717, 224543, 551151, 673629, 1653453, 2020887, 6062661, 18187983]

約数ペア:

[(1, 18187983), (3, 6062661), (9, 2020887), (11, 1653453), (27, 673629), (33, 551151), (81, 224543), (99, 183717), (137, 132759), (149, 122067), (297, 61239), (411, 44253), (447, 40689), (891, 20413), (1233, 14751), (1341, 13563), (1507, 12069), (1639, 11097), (3699, 4917), (4023, 4521)]