21763989

素因数分解:

$3^2\times {\mathrm{13}}^2\times {\mathrm{41}}^1\times {\mathrm{349}}^1$

素因数の和:422

約数の個数: 36

約数和(自身を含む): 34971300

約数和(自身を除く): 13207311

約数列:

[1, 3, 9, 13, 39, 41, 117, 123, 169, 349, 369, 507, 533, 1047, 1521, 1599, 3141, 4537, 4797, 6929, 13611, 14309, 20787, 40833, 42927, 58981, 62361, 128781, 176943, 186017, 530829, 558051, 1674153, 2418221, 7254663, 21763989]

約数ペア:

[(1, 21763989), (3, 7254663), (9, 2418221), (13, 1674153), (39, 558051), (41, 530829), (117, 186017), (123, 176943), (169, 128781), (349, 62361), (369, 58981), (507, 42927), (533, 40833), (1047, 20787), (1521, 14309), (1599, 13611), (3141, 6929), (4537, 4797)]