31921767

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:260

約数の個数: 48

約数和(自身を含む): 52416000

約数和(自身を除く): 20494233

約数列:

[1, 3, 9, 17, 19, 51, 57, 79, 139, 153, 171, 237, 323, 417, 711, 969, 1251, 1343, 1501, 2363, 2641, 2907, 4029, 4503, 7089, 7923, 10981, 12087, 13509, 21267, 23769, 25517, 32943, 44897, 76551, 98829, 134691, 186677, 208639, 229653, 404073, 560031, 625917, 1680093, 1877751, 3546863, 10640589, 31921767]

約数ペア:

[(1, 31921767), (3, 10640589), (9, 3546863), (17, 1877751), (19, 1680093), (51, 625917), (57, 560031), (79, 404073), (139, 229653), (153, 208639), (171, 186677), (237, 134691), (323, 98829), (417, 76551), (711, 44897), (969, 32943), (1251, 25517), (1343, 23769), (1501, 21267), (2363, 13509), (2641, 12087), (2907, 10981), (4029, 7923), (4503, 7089)]