20584467

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1$

素因数の和:212

約数の個数: 48

約数和(自身を含む): 33939360

約数和(自身を除く): 13354893

約数列:

[1, 3, 9, 17, 19, 51, 57, 73, 97, 153, 171, 219, 291, 323, 657, 873, 969, 1241, 1387, 1649, 1843, 2907, 3723, 4161, 4947, 5529, 7081, 11169, 12483, 14841, 16587, 21243, 23579, 31331, 63729, 70737, 93993, 120377, 134539, 212211, 281979, 361131, 403617, 1083393, 1210851, 2287163, 6861489, 20584467]

約数ペア:

[(1, 20584467), (3, 6861489), (9, 2287163), (17, 1210851), (19, 1083393), (51, 403617), (57, 361131), (73, 281979), (97, 212211), (153, 134539), (171, 120377), (219, 93993), (291, 70737), (323, 63729), (657, 31331), (873, 23579), (969, 21243), (1241, 16587), (1387, 14841), (1649, 12483), (1843, 11169), (2907, 7081), (3723, 5529), (4161, 4947)]