156980511

素因数分解:

$3^4\times {\mathrm{61}}^1\times {\mathrm{31771}}^1$

素因数の和:31844

約数の個数: 20

約数和(自身を含む): 238353544

約数和(自身を除く): 81373033

約数列:

[1, 3, 9, 27, 61, 81, 183, 549, 1647, 4941, 31771, 95313, 285939, 857817, 1938031, 2573451, 5814093, 17442279, 52326837, 156980511]

約数ペア:

[(1, 156980511), (3, 52326837), (9, 17442279), (27, 5814093), (61, 2573451), (81, 1938031), (183, 857817), (549, 285939), (1647, 95313), (4941, 31771)]