71389718

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{643}}^1\times {\mathrm{1291}}^1$

素因数の和:1979

約数の個数: 16

約数和(自身を含む): 109830336

約数和(自身を除く): 38440618

約数列:

[1, 2, 43, 86, 643, 1286, 1291, 2582, 27649, 55298, 55513, 111026, 830113, 1660226, 35694859, 71389718]

約数ペア:

[(1, 71389718), (2, 35694859), (43, 1660226), (86, 830113), (643, 111026), (1286, 55513), (1291, 55298), (2582, 27649)]