20957133028

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{719}}^1\times {\mathrm{560531}}^1$

素因数の和:561267

約数の個数: 24

約数和(自身を含む): 39551137920

約数和(自身を除く): 18594004892

約数列:

[1, 2, 4, 13, 26, 52, 719, 1438, 2876, 9347, 18694, 37388, 560531, 1121062, 2242124, 7286903, 14573806, 29147612, 403021789, 806043578, 1612087156, 5239283257, 10478566514, 20957133028]

約数ペア:

[(1, 20957133028), (2, 10478566514), (4, 5239283257), (13, 1612087156), (26, 806043578), (52, 403021789), (719, 29147612), (1438, 14573806), (2876, 7286903), (9347, 2242124), (18694, 1121062), (37388, 560531)]