20584988

素因数分解:

$2^2\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{1091}}^1$

素因数の和:1237

約数の個数: 24

約数和(自身を含む): 37149840

約数和(自身を除く): 16564852

約数列:

[1, 2, 4, 53, 89, 106, 178, 212, 356, 1091, 2182, 4364, 4717, 9434, 18868, 57823, 97099, 115646, 194198, 231292, 388396, 5146247, 10292494, 20584988]

約数ペア:

[(1, 20584988), (2, 10292494), (4, 5146247), (53, 388396), (89, 231292), (106, 194198), (178, 115646), (212, 97099), (356, 57823), (1091, 18868), (2182, 9434), (4364, 4717)]