21310114

素因数分解:

$2^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{7649}}^1$

素因数の和:7857

約数の個数: 16

約数和(自身を含む): 36720000

約数和(自身を除く): 15409886

約数列:

[1, 2, 7, 14, 199, 398, 1393, 2786, 7649, 15298, 53543, 107086, 1522151, 3044302, 10655057, 21310114]

約数ペア:

[(1, 21310114), (2, 10655057), (7, 3044302), (14, 1522151), (199, 107086), (398, 53543), (1393, 15298), (2786, 7649)]