31978471

素因数分解:

$7^1\times {\mathrm{37}}^2\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:199

約数の個数: 24

約数和(自身を含む): 38900736

約数和(自身を除く): 6922265

約数列:

[1, 7, 37, 47, 71, 259, 329, 497, 1369, 1739, 2627, 3337, 9583, 12173, 18389, 23359, 64343, 97199, 123469, 450401, 680393, 864283, 4568353, 31978471]

約数ペア:

[(1, 31978471), (7, 4568353), (37, 864283), (47, 680393), (71, 450401), (259, 123469), (329, 97199), (497, 64343), (1369, 23359), (1739, 18389), (2627, 12173), (3337, 9583)]