21149580

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{352493}}^1$

素因数の和:352505

約数の個数: 24

約数和(自身を含む): 59218992

約数和(自身を除く): 38069412

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 352493, 704986, 1057479, 1409972, 1762465, 2114958, 3524930, 4229916, 5287395, 7049860, 10574790, 21149580]

約数ペア:

[(1, 21149580), (2, 10574790), (3, 7049860), (4, 5287395), (5, 4229916), (6, 3524930), (10, 2114958), (12, 1762465), (15, 1409972), (20, 1057479), (30, 704986), (60, 352493)]