21787866

素因数分解:

$2^1\times 3^5\times {\mathrm{127}}^1\times {\mathrm{353}}^1$

素因数の和:497

約数の個数: 48

約数和(自身を含む): 49480704

約数和(自身を除く): 27692838

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 127, 162, 243, 254, 353, 381, 486, 706, 762, 1059, 1143, 2118, 2286, 3177, 3429, 6354, 6858, 9531, 10287, 19062, 20574, 28593, 30861, 44831, 57186, 61722, 85779, 89662, 134493, 171558, 268986, 403479, 806958, 1210437, 2420874, 3631311, 7262622, 10893933, 21787866]

約数ペア:

[(1, 21787866), (2, 10893933), (3, 7262622), (6, 3631311), (9, 2420874), (18, 1210437), (27, 806958), (54, 403479), (81, 268986), (127, 171558), (162, 134493), (243, 89662), (254, 85779), (353, 61722), (381, 57186), (486, 44831), (706, 30861), (762, 28593), (1059, 20574), (1143, 19062), (2118, 10287), (2286, 9531), (3177, 6858), (3429, 6354)]