18558716

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{1999}}^1$

素因数の和:2225

約数の個数: 24

約数和(自身を含む): 35616000

約数和(自身を除く): 17057284

約数列:

[1, 2, 4, 11, 22, 44, 211, 422, 844, 1999, 2321, 3998, 4642, 7996, 9284, 21989, 43978, 87956, 421789, 843578, 1687156, 4639679, 9279358, 18558716]

約数ペア:

[(1, 18558716), (2, 9279358), (4, 4639679), (11, 1687156), (22, 843578), (44, 421789), (211, 87956), (422, 43978), (844, 21989), (1999, 9284), (2321, 7996), (3998, 4642)]