21346767

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{997}}^1$

素因数の和:1080

約数の個数: 32

約数和(自身を含む): 34650560

約数和(自身を除く): 13303793

約数列:

[1, 3, 9, 13, 27, 39, 61, 117, 183, 351, 549, 793, 997, 1647, 2379, 2991, 7137, 8973, 12961, 21411, 26919, 38883, 60817, 116649, 182451, 349947, 547353, 790621, 1642059, 2371863, 7115589, 21346767]

約数ペア:

[(1, 21346767), (3, 7115589), (9, 2371863), (13, 1642059), (27, 790621), (39, 547353), (61, 349947), (117, 182451), (183, 116649), (351, 60817), (549, 38883), (793, 26919), (997, 21411), (1647, 12961), (2379, 8973), (2991, 7137)]