28657733

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:197

約数の個数: 32

約数和(自身を含む): 34836480

約数和(自身を除く): 6178747

約数列:

[1, 13, 17, 31, 47, 89, 221, 403, 527, 611, 799, 1157, 1457, 1513, 2759, 4183, 6851, 10387, 18941, 19669, 24769, 35867, 46903, 54379, 71111, 129673, 321997, 609739, 924443, 1685749, 2204441, 28657733]

約数ペア:

[(1, 28657733), (13, 2204441), (17, 1685749), (31, 924443), (47, 609739), (89, 321997), (221, 129673), (403, 71111), (527, 54379), (611, 46903), (799, 35867), (1157, 24769), (1457, 19669), (1513, 18941), (2759, 10387), (4183, 6851)]