21127271

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{739}}^1$

素因数の和:886

約数の個数: 16

約数和(自身を含む): 24295680

約数和(自身を除く): 3168409

約数列:

[1, 11, 23, 113, 253, 739, 1243, 2599, 8129, 16997, 28589, 83507, 186967, 918577, 1920661, 21127271]

約数ペア:

[(1, 21127271), (11, 1920661), (23, 918577), (113, 186967), (253, 83507), (739, 28589), (1243, 16997), (2599, 8129)]