21085380

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{39047}}^1$

素因数の和:39065

約数の個数: 48

約数和(自身を含む): 65600640

約数和(自身を除く): 44515260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 54, 60, 90, 108, 135, 180, 270, 540, 39047, 78094, 117141, 156188, 195235, 234282, 351423, 390470, 468564, 585705, 702846, 780940, 1054269, 1171410, 1405692, 1757115, 2108538, 2342820, 3514230, 4217076, 5271345, 7028460, 10542690, 21085380]

約数ペア:

[(1, 21085380), (2, 10542690), (3, 7028460), (4, 5271345), (5, 4217076), (6, 3514230), (9, 2342820), (10, 2108538), (12, 1757115), (15, 1405692), (18, 1171410), (20, 1054269), (27, 780940), (30, 702846), (36, 585705), (45, 468564), (54, 390470), (60, 351423), (90, 234282), (108, 195235), (135, 156188), (180, 117141), (270, 78094), (540, 39047)]