661090899

素因数分解:

$3^1\times 7^2\times {\mathrm{4497217}}^1$

素因数の和:4497234

約数の個数: 12

約数和(自身を含む): 1025365704

約数和(自身を除く): 364274805

約数列:

[1, 3, 7, 21, 49, 147, 4497217, 13491651, 31480519, 94441557, 220363633, 661090899]

約数ペア:

[(1, 661090899), (3, 220363633), (7, 94441557), (21, 31480519), (49, 13491651), (147, 4497217)]