245386953

素因数分解:

$3^2\times 7^2\times {\mathrm{47}}^1\times {\mathrm{11839}}^1$

素因数の和:11906

約数の個数: 36

約数和(自身を含む): 421125120

約数和(自身を除く): 175738167

約数列:

[1, 3, 7, 9, 21, 47, 49, 63, 141, 147, 329, 423, 441, 987, 2303, 2961, 6909, 11839, 20727, 35517, 82873, 106551, 248619, 556433, 580111, 745857, 1669299, 1740333, 3895031, 5007897, 5220999, 11685093, 27265217, 35055279, 81795651, 245386953]

約数ペア:

[(1, 245386953), (3, 81795651), (7, 35055279), (9, 27265217), (21, 11685093), (47, 5220999), (49, 5007897), (63, 3895031), (141, 1740333), (147, 1669299), (329, 745857), (423, 580111), (441, 556433), (987, 248619), (2303, 106551), (2961, 82873), (6909, 35517), (11839, 20727)]