87900021

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{4507}}^1$

素因数の和:4721

約数の個数: 24

約数和(自身を含む): 139243104

約数和(自身を除く): 51343083

約数列:

[1, 3, 9, 11, 33, 99, 197, 591, 1773, 2167, 4507, 6501, 13521, 19503, 40563, 49577, 148731, 446193, 887879, 2663637, 7990911, 9766669, 29300007, 87900021]

約数ペア:

[(1, 87900021), (3, 29300007), (9, 9766669), (11, 7990911), (33, 2663637), (99, 887879), (197, 446193), (591, 148731), (1773, 49577), (2167, 40563), (4507, 19503), (6501, 13521)]