20938590

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{3187}}^1$

素因数の和:3273

約数の個数: 48

約数和(自身を含む): 55203408

約数和(自身を除く): 34264818

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 73, 90, 146, 219, 365, 438, 657, 730, 1095, 1314, 2190, 3187, 3285, 6374, 6570, 9561, 15935, 19122, 28683, 31870, 47805, 57366, 95610, 143415, 232651, 286830, 465302, 697953, 1163255, 1395906, 2093859, 2326510, 3489765, 4187718, 6979530, 10469295, 20938590]

約数ペア:

[(1, 20938590), (2, 10469295), (3, 6979530), (5, 4187718), (6, 3489765), (9, 2326510), (10, 2093859), (15, 1395906), (18, 1163255), (30, 697953), (45, 465302), (73, 286830), (90, 232651), (146, 143415), (219, 95610), (365, 57366), (438, 47805), (657, 31870), (730, 28683), (1095, 19122), (1314, 15935), (2190, 9561), (3187, 6570), (3285, 6374)]