1242997

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:180

約数の個数: 16

約数和(自身を含む): 1499904

約数和(自身を除く): 256907

約数列:

[1, 7, 41, 61, 71, 287, 427, 497, 2501, 2911, 4331, 17507, 20377, 30317, 177571, 1242997]

約数ペア:

[(1, 1242997), (7, 177571), (41, 30317), (61, 20377), (71, 17507), (287, 4331), (427, 2911), (497, 2501)]