28079181

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{18461}}^1$

素因数の和:18493

約数の個数: 18

約数和(自身を含む): 43921098

約数和(自身を除く): 15841917

約数列:

[1, 3, 9, 13, 39, 117, 169, 507, 1521, 18461, 55383, 166149, 239993, 719979, 2159937, 3119909, 9359727, 28079181]

約数ペア:

[(1, 28079181), (3, 9359727), (9, 3119909), (13, 2159937), (39, 719979), (117, 239993), (169, 166149), (507, 55383), (1521, 18461)]