21462651

素因数分解:

$3^4\times 7^1\times {\mathrm{37853}}^1$

素因数の和:37872

約数の個数: 20

約数和(自身を含む): 36642672

約数和(自身を除く): 15180021

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 37853, 113559, 264971, 340677, 794913, 1022031, 2384739, 3066093, 7154217, 21462651]

約数ペア:

[(1, 21462651), (3, 7154217), (7, 3066093), (9, 2384739), (21, 1022031), (27, 794913), (63, 340677), (81, 264971), (189, 113559), (567, 37853)]