156939993

素因数分解:

$3^2\times 7^3\times {\mathrm{50839}}^1$

素因数の和:50866

約数の個数: 24

約数和(自身を含む): 264368000

約数和(自身を除く): 107428007

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 343, 441, 1029, 3087, 50839, 152517, 355873, 457551, 1067619, 2491111, 3202857, 7473333, 17437777, 22419999, 52313331, 156939993]

約数ペア:

[(1, 156939993), (3, 52313331), (7, 22419999), (9, 17437777), (21, 7473333), (49, 3202857), (63, 2491111), (147, 1067619), (343, 457551), (441, 355873), (1029, 152517), (3087, 50839)]