20831222

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{571}}^1$

素因数の和:656

約数の個数: 32

約数和(自身を含む): 35212320

約数和(自身を除く): 14381098

約数列:

[1, 2, 17, 29, 34, 37, 58, 74, 493, 571, 629, 986, 1073, 1142, 1258, 2146, 9707, 16559, 18241, 19414, 21127, 33118, 36482, 42254, 281503, 359159, 563006, 612683, 718318, 1225366, 10415611, 20831222]

約数ペア:

[(1, 20831222), (2, 10415611), (17, 1225366), (29, 718318), (34, 612683), (37, 563006), (58, 359159), (74, 281503), (493, 42254), (571, 36482), (629, 33118), (986, 21127), (1073, 19414), (1142, 18241), (1258, 16559), (2146, 9707)]