20244497

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{521}}^1$

素因数の和:609

約数の個数: 24

約数和(自身を含む): 25826472

約数和(自身を除く): 5581975

約数列:

[1, 7, 13, 49, 61, 91, 427, 521, 637, 793, 2989, 3647, 5551, 6773, 25529, 31781, 38857, 47411, 222467, 331877, 413153, 1557269, 2892071, 20244497]

約数ペア:

[(1, 20244497), (7, 2892071), (13, 1557269), (49, 413153), (61, 331877), (91, 222467), (427, 47411), (521, 38857), (637, 31781), (793, 25529), (2989, 6773), (3647, 5551)]