18920517

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{11701}}^1$

素因数の和:11729

約数の個数: 24

約数和(自身を含む): 32016672

約数和(自身を除く): 13096155

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 147, 231, 539, 1617, 11701, 35103, 81907, 128711, 245721, 386133, 573349, 900977, 1720047, 2702931, 6306839, 18920517]

約数ペア:

[(1, 18920517), (3, 6306839), (7, 2702931), (11, 1720047), (21, 900977), (33, 573349), (49, 386133), (77, 245721), (147, 128711), (231, 81907), (539, 35103), (1617, 11701)]