31489718

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{353}}^1$

素因数の和:488

約数の個数: 32

約数和(自身を含む): 52811136

約数和(自身を除く): 21321418

約数列:

[1, 2, 13, 26, 47, 73, 94, 146, 353, 611, 706, 949, 1222, 1898, 3431, 4589, 6862, 9178, 16591, 25769, 33182, 44603, 51538, 89206, 215683, 334997, 431366, 669994, 1211143, 2422286, 15744859, 31489718]

約数ペア:

[(1, 31489718), (2, 15744859), (13, 2422286), (26, 1211143), (47, 669994), (73, 431366), (94, 334997), (146, 215683), (353, 89206), (611, 51538), (706, 44603), (949, 33182), (1222, 25769), (1898, 16591), (3431, 9178), (4589, 6862)]