28116081

素因数分解:

$3^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{6661}}^1$

素因数の和:6741

約数の個数: 24

約数和(自身を含む): 47113664

約数和(自身を除く): 18997583

約数列:

[1, 3, 7, 9, 21, 63, 67, 201, 469, 603, 1407, 4221, 6661, 19983, 46627, 59949, 139881, 419643, 446287, 1338861, 3124009, 4016583, 9372027, 28116081]

約数ペア:

[(1, 28116081), (3, 9372027), (7, 4016583), (9, 3124009), (21, 1338861), (63, 446287), (67, 419643), (201, 139881), (469, 59949), (603, 46627), (1407, 19983), (4221, 6661)]