20807202841

素因数分解:

${\mathrm{19}}^2\times {\mathrm{137}}^1\times {\mathrm{449}}^1\times {\mathrm{937}}^1$

素因数の和:1561

約数の個数: 24

約数和(自身を含む): 22193173800

約数和(自身を除く): 1385970959

約数列:

[1, 19, 137, 361, 449, 937, 2603, 8531, 17803, 49457, 61513, 128369, 162089, 338257, 420713, 1168747, 2439011, 7993547, 22206193, 46341209, 57637681, 151877393, 1095115939, 20807202841]

約数ペア:

[(1, 20807202841), (19, 1095115939), (137, 151877393), (361, 57637681), (449, 46341209), (937, 22206193), (2603, 7993547), (8531, 2439011), (17803, 1168747), (49457, 420713), (61513, 338257), (128369, 162089)]