19279953

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{647}}^1$

素因数の和:714

約数の個数: 48

約数和(自身を含む): 35582976

約数和(自身を除く): 16303023

約数列:

[1, 3, 7, 9, 11, 21, 33, 43, 63, 77, 99, 129, 231, 301, 387, 473, 647, 693, 903, 1419, 1941, 2709, 3311, 4257, 4529, 5823, 7117, 9933, 13587, 21351, 27821, 29799, 40761, 49819, 64053, 83463, 149457, 194747, 250389, 306031, 448371, 584241, 918093, 1752723, 2142217, 2754279, 6426651, 19279953]

約数ペア:

[(1, 19279953), (3, 6426651), (7, 2754279), (9, 2142217), (11, 1752723), (21, 918093), (33, 584241), (43, 448371), (63, 306031), (77, 250389), (99, 194747), (129, 149457), (231, 83463), (301, 64053), (387, 49819), (473, 40761), (647, 29799), (693, 27821), (903, 21351), (1419, 13587), (1941, 9933), (2709, 7117), (3311, 5823), (4257, 4529)]