20155751

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{599}}^1$

素因数の和:659

約数の個数: 32

約数和(自身を含む): 27648000

約数和(自身を除く): 7492249

約数列:

[1, 7, 11, 19, 23, 77, 133, 161, 209, 253, 437, 599, 1463, 1771, 3059, 4193, 4807, 6589, 11381, 13777, 33649, 46123, 79667, 96439, 125191, 151547, 261763, 876337, 1060829, 1832341, 2879393, 20155751]

約数ペア:

[(1, 20155751), (7, 2879393), (11, 1832341), (19, 1060829), (23, 876337), (77, 261763), (133, 151547), (161, 125191), (209, 96439), (253, 79667), (437, 46123), (599, 33649), (1463, 13777), (1771, 11381), (3059, 6589), (4193, 4807)]