18543239

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:191

約数の個数: 32

約数和(自身を含む): 23224320

約数和(自身を除く): 4681081

約数列:

[1, 11, 13, 31, 47, 89, 143, 341, 403, 517, 611, 979, 1157, 1457, 2759, 4183, 4433, 6721, 12727, 16027, 18941, 30349, 35867, 46013, 54379, 129673, 208351, 394537, 598169, 1426403, 1685749, 18543239]

約数ペア:

[(1, 18543239), (11, 1685749), (13, 1426403), (31, 598169), (47, 394537), (89, 208351), (143, 129673), (341, 54379), (403, 46013), (517, 35867), (611, 30349), (979, 18941), (1157, 16027), (1457, 12727), (2759, 6721), (4183, 4433)]