81920461

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{2143}}^1$

素因数の和:2320

約数の個数: 16

約数和(自身を含む): 96600064

約数和(自身を除く): 14679603

約数列:

[1, 7, 43, 127, 301, 889, 2143, 5461, 15001, 38227, 92149, 272161, 645043, 1905127, 11702923, 81920461]

約数ペア:

[(1, 81920461), (7, 11702923), (43, 1905127), (127, 645043), (301, 272161), (889, 92149), (2143, 38227), (5461, 15001)]