21188668

素因数分解:

$2^2\times {\mathrm{571}}^1\times {\mathrm{9277}}^1$

素因数の和:9852

約数の個数: 12

約数和(自身を含む): 37149112

約数和(自身を除く): 15960444

約数列:

[1, 2, 4, 571, 1142, 2284, 9277, 18554, 37108, 5297167, 10594334, 21188668]

約数ペア:

[(1, 21188668), (2, 10594334), (4, 5297167), (571, 37108), (1142, 18554), (2284, 9277)]