51990237

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{431}}^1\times {\mathrm{1031}}^1$

素因数の和:1481

約数の個数: 24

約数和(自身を含む): 81139968

約数和(自身を除く): 29149731

約数列:

[1, 3, 9, 13, 39, 117, 431, 1031, 1293, 3093, 3879, 5603, 9279, 13403, 16809, 40209, 50427, 120627, 444361, 1333083, 3999249, 5776693, 17330079, 51990237]

約数ペア:

[(1, 51990237), (3, 17330079), (9, 5776693), (13, 3999249), (39, 1333083), (117, 444361), (431, 120627), (1031, 50427), (1293, 40209), (3093, 16809), (3879, 13403), (5603, 9279)]