21530559

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{4127}}^1$

素因数の和:4214

約数の個数: 16

約数和(自身を含む): 30117888

約数和(自身を除く): 8587329

約数列:

[1, 3, 37, 47, 111, 141, 1739, 4127, 5217, 12381, 152699, 193969, 458097, 581907, 7176853, 21530559]

約数ペア:

[(1, 21530559), (3, 7176853), (37, 581907), (47, 458097), (111, 193969), (141, 152699), (1739, 12381), (4127, 5217)]