201768651

素因数分解:

$3^4\times 7^1\times {\mathrm{355853}}^1$

素因数の和:355872

約数の個数: 20

約数和(自身を含む): 344466672

約数和(自身を除く): 142698021

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 355853, 1067559, 2490971, 3202677, 7472913, 9608031, 22418739, 28824093, 67256217, 201768651]

約数ペア:

[(1, 201768651), (3, 67256217), (7, 28824093), (9, 22418739), (21, 9608031), (27, 7472913), (63, 3202677), (81, 2490971), (189, 1067559), (567, 355853)]