66720501

素因数分解:

$3^2\times {\mathrm{421}}^1\times {\mathrm{17609}}^1$

素因数の和:18036

約数の個数: 12

約数和(自身を含む): 96608460

約数和(自身を除く): 29887959

約数列:

[1, 3, 9, 421, 1263, 3789, 17609, 52827, 158481, 7413389, 22240167, 66720501]

約数ペア:

[(1, 66720501), (3, 22240167), (9, 7413389), (421, 158481), (1263, 52827), (3789, 17609)]