21669109

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{347}}^1\times {\mathrm{811}}^1$

素因数の和:1176

約数の個数: 16

約数和(自身を含む): 27127296

約数和(自身を除く): 5458187

約数列:

[1, 7, 11, 77, 347, 811, 2429, 3817, 5677, 8921, 26719, 62447, 281417, 1969919, 3095587, 21669109]

約数ペア:

[(1, 21669109), (7, 3095587), (11, 1969919), (77, 281417), (347, 62447), (811, 26719), (2429, 8921), (3817, 5677)]