18890308671

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{193}}^1\times {\mathrm{67829}}^1$

素因数の和:68075

約数の個数: 32

約数和(自身を含む): 28002394560

約数和(自身を除く): 9112085889

約数列:

[1, 3, 13, 37, 39, 111, 193, 481, 579, 1443, 2509, 7141, 7527, 21423, 67829, 92833, 203487, 278499, 881777, 2509673, 2645331, 7529019, 13090997, 32625749, 39272991, 97877247, 170182961, 484366889, 510548883, 1453100667, 6296769557, 18890308671]

約数ペア:

[(1, 18890308671), (3, 6296769557), (13, 1453100667), (37, 510548883), (39, 484366889), (111, 170182961), (193, 97877247), (481, 39272991), (579, 32625749), (1443, 13090997), (2509, 7529019), (7141, 2645331), (7527, 2509673), (21423, 881777), (67829, 278499), (92833, 203487)]