21315177

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{60727}}^1$

素因数の和:60749

約数の個数: 16

約数和(自身を含む): 34007680

約数和(自身を除く): 12692503

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 60727, 182181, 546543, 789451, 1639629, 2368353, 7105059, 21315177]

約数ペア:

[(1, 21315177), (3, 7105059), (9, 2368353), (13, 1639629), (27, 789451), (39, 546543), (117, 182181), (351, 60727)]