19807893

素因数分解:

$3^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{73}}^2$

素因数の和:218

約数の個数: 36

約数和(自身を含む): 33714720

約数和(自身を除く): 13906827

約数列:

[1, 3, 7, 9, 21, 59, 63, 73, 177, 219, 413, 511, 531, 657, 1239, 1533, 3717, 4307, 4599, 5329, 12921, 15987, 30149, 37303, 38763, 47961, 90447, 111909, 271341, 314411, 335727, 943233, 2200877, 2829699, 6602631, 19807893]

約数ペア:

[(1, 19807893), (3, 6602631), (7, 2829699), (9, 2200877), (21, 943233), (59, 335727), (63, 314411), (73, 271341), (177, 111909), (219, 90447), (413, 47961), (511, 38763), (531, 37303), (657, 30149), (1239, 15987), (1533, 12921), (3717, 5329), (4307, 4599)]