21131210

素因数分解:

$2^1\times 5^1\times {\mathrm{829}}^1\times {\mathrm{2549}}^1$

素因数の和:3385

約数の個数: 16

約数和(自身を含む): 38097000

約数和(自身を除く): 16965790

約数列:

[1, 2, 5, 10, 829, 1658, 2549, 4145, 5098, 8290, 12745, 25490, 2113121, 4226242, 10565605, 21131210]

約数ペア:

[(1, 21131210), (2, 10565605), (5, 4226242), (10, 2113121), (829, 25490), (1658, 12745), (2549, 8290), (4145, 5098)]