21788572

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{353}}^1\times {\mathrm{1187}}^1$

素因数の和:1557

約数の個数: 24

約数和(自身を含む): 41214096

約数和(自身を除く): 19425524

約数列:

[1, 2, 4, 13, 26, 52, 353, 706, 1187, 1412, 2374, 4589, 4748, 9178, 15431, 18356, 30862, 61724, 419011, 838022, 1676044, 5447143, 10894286, 21788572]

約数ペア:

[(1, 21788572), (2, 10894286), (4, 5447143), (13, 1676044), (26, 838022), (52, 419011), (353, 61724), (706, 30862), (1187, 18356), (1412, 15431), (2374, 9178), (4589, 4748)]