20512221776

素因数分解:

$2^4\times {\mathrm{5441}}^1\times {\mathrm{235621}}^1$

素因数の和:241070

約数の個数: 20

約数和(自身を含む): 39749902644

約数和(自身を除く): 19237680868

約数列:

[1, 2, 4, 8, 16, 5441, 10882, 21764, 43528, 87056, 235621, 471242, 942484, 1884968, 3769936, 1282013861, 2564027722, 5128055444, 10256110888, 20512221776]

約数ペア:

[(1, 20512221776), (2, 10256110888), (4, 5128055444), (8, 2564027722), (16, 1282013861), (5441, 3769936), (10882, 1884968), (21764, 942484), (43528, 471242), (87056, 235621)]