1808811

素因数分解:

$3^4\times {\mathrm{137}}^1\times {\mathrm{163}}^1$

素因数の和:312

約数の個数: 20

約数和(自身を含む): 2738472

約数和(自身を除く): 929661

約数列:

[1, 3, 9, 27, 81, 137, 163, 411, 489, 1233, 1467, 3699, 4401, 11097, 13203, 22331, 66993, 200979, 602937, 1808811]

約数ペア:

[(1, 1808811), (3, 602937), (9, 200979), (27, 66993), (81, 22331), (137, 13203), (163, 11097), (411, 4401), (489, 3699), (1233, 1467)]