21912655

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1\times {\mathrm{769}}^1$

素因数の和:954

約数の個数: 16

約数和(自身を含む): 27165600

約数和(自身を除く): 5252945

約数列:

[1, 5, 41, 139, 205, 695, 769, 3845, 5699, 28495, 31529, 106891, 157645, 534455, 4382531, 21912655]

約数ペア:

[(1, 21912655), (5, 4382531), (41, 534455), (139, 157645), (205, 106891), (695, 31529), (769, 28495), (3845, 5699)]