21262249

素因数分解:

${\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{353}}^1$

素因数の和:480

約数の個数: 16

約数和(自身を含む): 23109120

約数和(自身を除く): 1846871

約数列:

[1, 29, 31, 67, 353, 899, 1943, 2077, 10237, 10943, 23651, 60233, 317347, 685879, 733181, 21262249]

約数ペア:

[(1, 21262249), (29, 733181), (31, 685879), (67, 317347), (353, 60233), (899, 23651), (1943, 10943), (2077, 10237)]