21256554494

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{1094683}}^1$

素因数の和:1094784

約数の個数: 32

約数和(自身を含む): 38883175680

約数和(自身を除く): 17626621186

約数列:

[1, 2, 7, 14, 19, 38, 73, 133, 146, 266, 511, 1022, 1387, 2774, 9709, 19418, 1094683, 2189366, 7662781, 15325562, 20798977, 41597954, 79911859, 145592839, 159823718, 291185678, 559383013, 1118766026, 1518325321, 3036650642, 10628277247, 21256554494]

約数ペア:

[(1, 21256554494), (2, 10628277247), (7, 3036650642), (14, 1518325321), (19, 1118766026), (38, 559383013), (73, 291185678), (133, 159823718), (146, 145592839), (266, 79911859), (511, 41597954), (1022, 20798977), (1387, 15325562), (2774, 7662781), (9709, 2189366), (19418, 1094683)]