16787421

素因数分解:

$3^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{3373}}^1$

素因数の和:3465

約数の個数: 24

約数和(自身を含む): 28071680

約数和(自身を除く): 11284259

約数列:

[1, 3, 7, 9, 21, 63, 79, 237, 553, 711, 1659, 3373, 4977, 10119, 23611, 30357, 70833, 212499, 266467, 799401, 1865269, 2398203, 5595807, 16787421]

約数ペア:

[(1, 16787421), (3, 5595807), (7, 2398203), (9, 1865269), (21, 799401), (63, 266467), (79, 212499), (237, 70833), (553, 30357), (711, 23611), (1659, 10119), (3373, 4977)]