28072443

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^2\times {\mathrm{23}}^2$

素因数の和:101

約数の個数: 54

約数和(自身を含む): 48038004

約数和(自身を除く): 19965561

約数列:

[1, 3, 7, 19, 21, 23, 49, 57, 69, 133, 147, 161, 361, 399, 437, 483, 529, 931, 1083, 1127, 1311, 1587, 2527, 2793, 3059, 3381, 3703, 7581, 8303, 9177, 10051, 11109, 17689, 21413, 24909, 25921, 30153, 53067, 58121, 64239, 70357, 77763, 174363, 190969, 211071, 406847, 492499, 572907, 1220541, 1336783, 1477497, 4010349, 9357481, 28072443]

約数ペア:

[(1, 28072443), (3, 9357481), (7, 4010349), (19, 1477497), (21, 1336783), (23, 1220541), (49, 572907), (57, 492499), (69, 406847), (133, 211071), (147, 190969), (161, 174363), (361, 77763), (399, 70357), (437, 64239), (483, 58121), (529, 53067), (931, 30153), (1083, 25921), (1127, 24909), (1311, 21413), (1587, 17689), (2527, 11109), (2793, 10051), (3059, 9177), (3381, 8303), (3703, 7581)]