991067

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{211}}^1$

素因数の和:290

約数の個数: 16

約数和(自身を含む): 1261824

約数和(自身を除く): 270757

約数列:

[1, 7, 11, 61, 77, 211, 427, 671, 1477, 2321, 4697, 12871, 16247, 90097, 141581, 991067]

約数ペア:

[(1, 991067), (7, 141581), (11, 90097), (61, 16247), (77, 12871), (211, 4697), (427, 2321), (671, 1477)]