20556578

素因数分解:

$2^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{4463}}^1$

素因数の和:4526

約数の個数: 24

約数和(自身を含む): 36640512

約数和(自身を除く): 16083934

約数列:

[1, 2, 7, 14, 47, 49, 94, 98, 329, 658, 2303, 4463, 4606, 8926, 31241, 62482, 209761, 218687, 419522, 437374, 1468327, 2936654, 10278289, 20556578]

約数ペア:

[(1, 20556578), (2, 10278289), (7, 2936654), (14, 1468327), (47, 437374), (49, 419522), (94, 218687), (98, 209761), (329, 62482), (658, 31241), (2303, 8926), (4463, 4606)]