21053681

素因数分解:

${\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{2129}}^1$

素因数の和:2200

約数の個数: 16

約数和(自身を含む): 24537600

約数和(自身を除く): 3483919

約数列:

[1, 11, 29, 31, 319, 341, 899, 2129, 9889, 23419, 61741, 65999, 679151, 725989, 1913971, 21053681]

約数ペア:

[(1, 21053681), (11, 1913971), (29, 725989), (31, 679151), (319, 65999), (341, 61741), (899, 23419), (2129, 9889)]