20951425

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{1621}}^1$

素因数の和:1689

約数の個数: 24

約数和(自身を含む): 28962432

約数和(自身を除く): 8011007

約数列:

[1, 5, 11, 25, 47, 55, 235, 275, 517, 1175, 1621, 2585, 8105, 12925, 17831, 40525, 76187, 89155, 380935, 445775, 838057, 1904675, 4190285, 20951425]

約数ペア:

[(1, 20951425), (5, 4190285), (11, 1904675), (25, 838057), (47, 445775), (55, 380935), (235, 89155), (275, 76187), (517, 40525), (1175, 17831), (1621, 12925), (2585, 8105)]