21224665

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1901}}^1$

素因数の和:1953

約数の個数: 32

約数和(自身を含む): 32866560

約数和(自身を除く): 11641895

約数列:

[1, 5, 7, 11, 29, 35, 55, 77, 145, 203, 319, 385, 1015, 1595, 1901, 2233, 9505, 11165, 13307, 20911, 55129, 66535, 104555, 146377, 275645, 385903, 606419, 731885, 1929515, 3032095, 4244933, 21224665]

約数ペア:

[(1, 21224665), (5, 4244933), (7, 3032095), (11, 1929515), (29, 731885), (35, 606419), (55, 385903), (77, 275645), (145, 146377), (203, 104555), (319, 66535), (385, 55129), (1015, 20911), (1595, 13307), (1901, 11165), (2233, 9505)]