20512971344

素因数分解:

$2^4\times {\mathrm{1669}}^1\times {\mathrm{768161}}^1$

素因数の和:769838

約数の個数: 20

約数和(自身を含む): 39767746740

約数和(自身を除く): 19254775396

約数列:

[1, 2, 4, 8, 16, 1669, 3338, 6676, 13352, 26704, 768161, 1536322, 3072644, 6145288, 12290576, 1282060709, 2564121418, 5128242836, 10256485672, 20512971344]

約数ペア:

[(1, 20512971344), (2, 10256485672), (4, 5128242836), (8, 2564121418), (16, 1282060709), (1669, 12290576), (3338, 6145288), (6676, 3072644), (13352, 1536322), (26704, 768161)]