18789214778888

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{20443}}^1\times {\mathrm{1883407}}^1$

素因数の和:1903917

約数の個数: 32

約数和(自身を含む): 35809085631360

約数和(自身を除く): 17019870852472

約数列:

[1, 2, 4, 8, 61, 122, 244, 488, 20443, 40886, 81772, 163544, 1247023, 1883407, 2494046, 3766814, 4988092, 7533628, 9976184, 15067256, 114887827, 229775654, 459551308, 919102616, 38502489301, 77004978602, 154009957204, 308019914408, 2348651847361, 4697303694722, 9394607389444, 18789214778888]

約数ペア:

[(1, 18789214778888), (2, 9394607389444), (4, 4697303694722), (8, 2348651847361), (61, 308019914408), (122, 154009957204), (244, 77004978602), (488, 38502489301), (20443, 919102616), (40886, 459551308), (81772, 229775654), (163544, 114887827), (1247023, 15067256), (1883407, 9976184), (2494046, 7533628), (3766814, 4988092)]