21095520568

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{37140001}}^1$

素因数の和:37140078

約数の個数: 16

約数和(自身を含む): 40111202160

約数和(自身を除く): 19015681592

約数列:

[1, 2, 4, 8, 71, 142, 284, 568, 37140001, 74280002, 148560004, 297120008, 2636940071, 5273880142, 10547760284, 21095520568]

約数ペア:

[(1, 21095520568), (2, 10547760284), (4, 5273880142), (8, 2636940071), (71, 297120008), (142, 148560004), (284, 74280002), (568, 37140001)]