21203908

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{547}}^1\times {\mathrm{881}}^1$

素因数の和:1443

約数の個数: 24

約数和(自身を含む): 40600224

約数和(自身を除く): 19396316

約数列:

[1, 2, 4, 11, 22, 44, 547, 881, 1094, 1762, 2188, 3524, 6017, 9691, 12034, 19382, 24068, 38764, 481907, 963814, 1927628, 5300977, 10601954, 21203908]

約数ペア:

[(1, 21203908), (2, 10601954), (4, 5300977), (11, 1927628), (22, 963814), (44, 481907), (547, 38764), (881, 24068), (1094, 19382), (1762, 12034), (2188, 9691), (3524, 6017)]