28212723

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{3701}}^1$

素因数の和:3736

約数の個数: 36

約数和(自身を含む): 51206064

約数和(自身を除く): 22993341

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 121, 231, 363, 693, 847, 1089, 2541, 3701, 7623, 11103, 25907, 33309, 40711, 77721, 122133, 233163, 284977, 366399, 447821, 854931, 1343463, 2564793, 3134747, 4030389, 9404241, 28212723]

約数ペア:

[(1, 28212723), (3, 9404241), (7, 4030389), (9, 3134747), (11, 2564793), (21, 1343463), (33, 854931), (63, 447821), (77, 366399), (99, 284977), (121, 233163), (231, 122133), (363, 77721), (693, 40711), (847, 33309), (1089, 25907), (2541, 11103), (3701, 7623)]