21328437

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{349}}^1\times {\mathrm{1567}}^1$

素因数の和:1932

約数の個数: 16

約数和(自身を含む): 30732800

約数和(自身を除く): 9404363

約数列:

[1, 3, 13, 39, 349, 1047, 1567, 4537, 4701, 13611, 20371, 61113, 546883, 1640649, 7109479, 21328437]

約数ペア:

[(1, 21328437), (3, 7109479), (13, 1640649), (39, 546883), (349, 61113), (1047, 20371), (1567, 13611), (4537, 4701)]