21872199

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{151}}^1\times {\mathrm{911}}^1$

素因数の和:1118

約数の個数: 16

約数和(自身を含む): 29942784

約数和(自身を除く): 8070585

約数列:

[1, 3, 53, 151, 159, 453, 911, 2733, 8003, 24009, 48283, 137561, 144849, 412683, 7290733, 21872199]

約数ペア:

[(1, 21872199), (3, 7290733), (53, 412683), (151, 144849), (159, 137561), (453, 48283), (911, 24009), (2733, 8003)]