21525556

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{21787}}^1$

素因数の和:21823

約数の個数: 24

約数和(自身を含む): 42704480

約数和(自身を除く): 21178924

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988, 21787, 43574, 87148, 283231, 413953, 566462, 827906, 1132924, 1655812, 5381389, 10762778, 21525556]

約数ペア:

[(1, 21525556), (2, 10762778), (4, 5381389), (13, 1655812), (19, 1132924), (26, 827906), (38, 566462), (52, 413953), (76, 283231), (247, 87148), (494, 43574), (988, 21787)]