21000851908

素因数分解:

$2^2\times {\mathrm{107}}^1\times {\mathrm{727}}^1\times {\mathrm{67493}}^1$

素因数の和:68331

約数の個数: 24

約数和(自身を含む): 37146537792

約数和(自身を除く): 16145685884

約数列:

[1, 2, 4, 107, 214, 428, 727, 1454, 2908, 67493, 77789, 134986, 155578, 269972, 311156, 7221751, 14443502, 28887004, 49067411, 98134822, 196269644, 5250212977, 10500425954, 21000851908]

約数ペア:

[(1, 21000851908), (2, 10500425954), (4, 5250212977), (107, 196269644), (214, 98134822), (428, 49067411), (727, 28887004), (1454, 14443502), (2908, 7221751), (67493, 311156), (77789, 269972), (134986, 155578)]