21143942

素因数分解:

$2^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{2441}}^1$

素因数の和:2575

約数の個数: 16

約数和(自身を含む): 32703264

約数和(自身を除く): 11559322

約数列:

[1, 2, 61, 71, 122, 142, 2441, 4331, 4882, 8662, 148901, 173311, 297802, 346622, 10571971, 21143942]

約数ペア:

[(1, 21143942), (2, 10571971), (61, 346622), (71, 297802), (122, 173311), (142, 148901), (2441, 8662), (4331, 4882)]