28021785

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{15439}}^1$

素因数の和:15469

約数の個数: 24

約数和(自身を含む): 49284480

約数和(自身を除く): 21262695

約数列:

[1, 3, 5, 11, 15, 33, 55, 121, 165, 363, 605, 1815, 15439, 46317, 77195, 169829, 231585, 509487, 849145, 1868119, 2547435, 5604357, 9340595, 28021785]

約数ペア:

[(1, 28021785), (3, 9340595), (5, 5604357), (11, 2547435), (15, 1868119), (33, 849145), (55, 509487), (121, 231585), (165, 169829), (363, 77195), (605, 46317), (1815, 15439)]