20541829

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1657}}^1$

素因数の和:1705

約数の個数: 24

約数和(自身を含む): 27217728

約数和(自身を除く): 6675899

約数列:

[1, 7, 11, 23, 49, 77, 161, 253, 539, 1127, 1657, 1771, 11599, 12397, 18227, 38111, 81193, 127589, 266777, 419221, 893123, 1867439, 2934547, 20541829]

約数ペア:

[(1, 20541829), (7, 2934547), (11, 1867439), (23, 893123), (49, 419221), (77, 266777), (161, 127589), (253, 81193), (539, 38111), (1127, 18227), (1657, 12397), (1771, 11599)]