18217269

素因数分解:

$3^2\times 7^2\times {\mathrm{101}}^1\times {\mathrm{409}}^1$

素因数の和:530

約数の個数: 36

約数和(自身を含む): 30988620

約数和(自身を除く): 12771351

約数列:

[1, 3, 7, 9, 21, 49, 63, 101, 147, 303, 409, 441, 707, 909, 1227, 2121, 2863, 3681, 4949, 6363, 8589, 14847, 20041, 25767, 41309, 44541, 60123, 123927, 180369, 289163, 371781, 867489, 2024141, 2602467, 6072423, 18217269]

約数ペア:

[(1, 18217269), (3, 6072423), (7, 2602467), (9, 2024141), (21, 867489), (49, 371781), (63, 289163), (101, 180369), (147, 123927), (303, 60123), (409, 44541), (441, 41309), (707, 25767), (909, 20041), (1227, 14847), (2121, 8589), (2863, 6363), (3681, 4949)]