21987484012

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{1153}}^1\times {\mathrm{366727}}^1$

素因数の和:367897

約数の個数: 24

約数和(自身を含む): 41474002976

約数和(自身を除く): 19486518964

約数列:

[1, 2, 4, 13, 26, 52, 1153, 2306, 4612, 14989, 29978, 59956, 366727, 733454, 1466908, 4767451, 9534902, 19069804, 422836231, 845672462, 1691344924, 5496871003, 10993742006, 21987484012]

約数ペア:

[(1, 21987484012), (2, 10993742006), (4, 5496871003), (13, 1691344924), (26, 845672462), (52, 422836231), (1153, 19069804), (2306, 9534902), (4612, 4767451), (14989, 1466908), (29978, 733454), (59956, 366727)]