20407383

素因数分解:

$3^5\times {\mathrm{137}}^1\times {\mathrm{613}}^1$

素因数の和:765

約数の個数: 24

約数和(自身を含む): 30842448

約数和(自身を除く): 10435065

約数列:

[1, 3, 9, 27, 81, 137, 243, 411, 613, 1233, 1839, 3699, 5517, 11097, 16551, 33291, 49653, 83981, 148959, 251943, 755829, 2267487, 6802461, 20407383]

約数ペア:

[(1, 20407383), (3, 6802461), (9, 2267487), (27, 755829), (81, 251943), (137, 148959), (243, 83981), (411, 49653), (613, 33291), (1233, 16551), (1839, 11097), (3699, 5517)]