31991398

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{43}}^2\times {\mathrm{211}}^1$

素因数の和:340

約数の個数: 24

約数和(自身を含む): 50565816

約数和(自身を除く): 18574418

約数列:

[1, 2, 41, 43, 82, 86, 211, 422, 1763, 1849, 3526, 3698, 8651, 9073, 17302, 18146, 75809, 151618, 371993, 390139, 743986, 780278, 15995699, 31991398]

約数ペア:

[(1, 31991398), (2, 15995699), (41, 780278), (43, 743986), (82, 390139), (86, 371993), (211, 151618), (422, 75809), (1763, 18146), (1849, 17302), (3526, 9073), (3698, 8651)]