21690420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{361507}}^1$

素因数の和:361519

約数の個数: 24

約数和(自身を含む): 60733344

約数和(自身を除く): 39042924

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 361507, 723014, 1084521, 1446028, 1807535, 2169042, 3615070, 4338084, 5422605, 7230140, 10845210, 21690420]

約数ペア:

[(1, 21690420), (2, 10845210), (3, 7230140), (4, 5422605), (5, 4338084), (6, 3615070), (10, 2169042), (12, 1807535), (15, 1446028), (20, 1084521), (30, 723014), (60, 361507)]