25984959

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{509}}^1$

素因数の和:560

約数の個数: 64

約数和(自身を含む): 49351680

約数和(自身を除く): 23366721

約数列:

[1, 3, 7, 11, 13, 17, 21, 33, 39, 51, 77, 91, 119, 143, 187, 221, 231, 273, 357, 429, 509, 561, 663, 1001, 1309, 1527, 1547, 2431, 3003, 3563, 3927, 4641, 5599, 6617, 7293, 8653, 10689, 16797, 17017, 19851, 25959, 39193, 46319, 51051, 60571, 72787, 95183, 112489, 117579, 138957, 181713, 218361, 285549, 337467, 509509, 666281, 787423, 1237379, 1528527, 1998843, 2362269, 3712137, 8661653, 25984959]

約数ペア:

[(1, 25984959), (3, 8661653), (7, 3712137), (11, 2362269), (13, 1998843), (17, 1528527), (21, 1237379), (33, 787423), (39, 666281), (51, 509509), (77, 337467), (91, 285549), (119, 218361), (143, 181713), (187, 138957), (221, 117579), (231, 112489), (273, 95183), (357, 72787), (429, 60571), (509, 51051), (561, 46319), (663, 39193), (1001, 25959), (1309, 19851), (1527, 17017), (1547, 16797), (2431, 10689), (3003, 8653), (3563, 7293), (3927, 6617), (4641, 5599)]