21924651

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{54949}}^1$

素因数の和:54978

約数の個数: 16

約数和(自身を含む): 35168000

約数和(自身を除く): 13243349

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 54949, 164847, 384643, 1044031, 1153929, 3132093, 7308217, 21924651]

約数ペア:

[(1, 21924651), (3, 7308217), (7, 3132093), (19, 1153929), (21, 1044031), (57, 384643), (133, 164847), (399, 54949)]