19339551

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{59}}^1$

素因数の和:137

約数の個数: 72

約数和(自身を含む): 36516480

約数和(自身を除く): 17176929

約数列:

[1, 3, 7, 9, 11, 21, 33, 43, 59, 63, 77, 99, 121, 129, 177, 231, 301, 363, 387, 413, 473, 531, 649, 693, 847, 903, 1089, 1239, 1419, 1947, 2537, 2541, 2709, 3311, 3717, 4257, 4543, 5203, 5841, 7139, 7611, 7623, 9933, 13629, 15609, 17759, 21417, 22833, 27907, 29799, 36421, 40887, 46827, 49973, 53277, 64251, 83721, 109263, 149919, 159831, 195349, 251163, 306977, 327789, 449757, 586047, 920931, 1758141, 2148839, 2762793, 6446517, 19339551]

約数ペア:

[(1, 19339551), (3, 6446517), (7, 2762793), (9, 2148839), (11, 1758141), (21, 920931), (33, 586047), (43, 449757), (59, 327789), (63, 306977), (77, 251163), (99, 195349), (121, 159831), (129, 149919), (177, 109263), (231, 83721), (301, 64251), (363, 53277), (387, 49973), (413, 46827), (473, 40887), (531, 36421), (649, 29799), (693, 27907), (847, 22833), (903, 21417), (1089, 17759), (1239, 15609), (1419, 13629), (1947, 9933), (2537, 7623), (2541, 7611), (2709, 7139), (3311, 5841), (3717, 5203), (4257, 4543)]