20401724

素因数分解:

$2^2\times 7^1\times {\mathrm{281}}^1\times {\mathrm{2593}}^1$

素因数の和:2885

約数の個数: 24

約数和(自身を含む): 40964448

約数和(自身を除く): 20562724

約数列:

[1, 2, 4, 7, 14, 28, 281, 562, 1124, 1967, 2593, 3934, 5186, 7868, 10372, 18151, 36302, 72604, 728633, 1457266, 2914532, 5100431, 10200862, 20401724]

約数ペア:

[(1, 20401724), (2, 10200862), (4, 5100431), (7, 2914532), (14, 1457266), (28, 728633), (281, 72604), (562, 36302), (1124, 18151), (1967, 10372), (2593, 7868), (3934, 5186)]