30991847

素因数分解:

${\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1\times {\mathrm{239}}^1$

素因数の和:406

約数の個数: 16

約数和(自身を含む): 33177600

約数和(自身を除く): 2185753

約数列:

[1, 31, 47, 89, 239, 1457, 2759, 4183, 7409, 11233, 21271, 129673, 348223, 659401, 999737, 30991847]

約数ペア:

[(1, 30991847), (31, 999737), (47, 659401), (89, 348223), (239, 129673), (1457, 21271), (2759, 11233), (4183, 7409)]