28211381

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{2557}}^1$

素因数の和:2644

約数の個数: 16

約数和(自身を含む): 33151680

約数和(自身を除く): 4940299

約数列:

[1, 11, 17, 59, 187, 649, 1003, 2557, 11033, 28127, 43469, 150863, 478159, 1659493, 2564671, 28211381]

約数ペア:

[(1, 28211381), (11, 2564671), (17, 1659493), (59, 478159), (187, 150863), (649, 43469), (1003, 28127), (2557, 11033)]