20913724

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{523}}^1\times {\mathrm{769}}^1$

素因数の和:1309

約数の個数: 24

約数和(自身を含む): 39541040

約数和(自身を除く): 18627316

約数列:

[1, 2, 4, 13, 26, 52, 523, 769, 1046, 1538, 2092, 3076, 6799, 9997, 13598, 19994, 27196, 39988, 402187, 804374, 1608748, 5228431, 10456862, 20913724]

約数ペア:

[(1, 20913724), (2, 10456862), (4, 5228431), (13, 1608748), (26, 804374), (52, 402187), (523, 39988), (769, 27196), (1046, 19994), (1538, 13598), (2092, 9997), (3076, 6799)]