18237303

素因数分解:

$3^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{2113}}^1$

素因数の和:2263

約数の個数: 24

約数和(自身を含む): 30340128

約数和(自身を除く): 12102825

約数列:

[1, 3, 7, 9, 21, 63, 137, 411, 959, 1233, 2113, 2877, 6339, 8631, 14791, 19017, 44373, 133119, 289481, 868443, 2026367, 2605329, 6079101, 18237303]

約数ペア:

[(1, 18237303), (3, 6079101), (7, 2605329), (9, 2026367), (21, 868443), (63, 289481), (137, 133119), (411, 44373), (959, 19017), (1233, 14791), (2113, 8631), (2877, 6339)]