21220700

素因数分解:

$2^2\times 5^2\times {\mathrm{212207}}^1$

素因数の和:212221

約数の個数: 18

約数和(自身を含む): 46049136

約数和(自身を除く): 24828436

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 212207, 424414, 848828, 1061035, 2122070, 4244140, 5305175, 10610350, 21220700]

約数ペア:

[(1, 21220700), (2, 10610350), (4, 5305175), (5, 4244140), (10, 2122070), (20, 1061035), (25, 848828), (50, 424414), (100, 212207)]