20749908

素因数分解:

$2^2\times 3^1\times {\mathrm{43}}^1\times {\mathrm{40213}}^1$

素因数の和:40263

約数の個数: 24

約数和(自身を含む): 49543648

約数和(自身を除く): 28793740

約数列:

[1, 2, 3, 4, 6, 12, 43, 86, 129, 172, 258, 516, 40213, 80426, 120639, 160852, 241278, 482556, 1729159, 3458318, 5187477, 6916636, 10374954, 20749908]

約数ペア:

[(1, 20749908), (2, 10374954), (3, 6916636), (4, 5187477), (6, 3458318), (12, 1729159), (43, 482556), (86, 241278), (129, 160852), (172, 120639), (258, 80426), (516, 40213)]