61977013

素因数分解:

$7^4\times {\mathrm{83}}^1\times {\mathrm{311}}^1$

素因数の和:422

約数の個数: 20

約数和(自身を含む): 73408608

約数和(自身を除く): 11431595

約数列:

[1, 7, 49, 83, 311, 343, 581, 2177, 2401, 4067, 15239, 25813, 28469, 106673, 180691, 199283, 746711, 1264837, 8853859, 61977013]

約数ペア:

[(1, 61977013), (7, 8853859), (49, 1264837), (83, 746711), (311, 199283), (343, 180691), (581, 106673), (2177, 28469), (2401, 25813), (4067, 15239)]