21689733

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{15031}}^1$

素因数の和:15084

約数の個数: 16

約数和(自身を含む): 31988096

約数和(自身を除く): 10298363

約数列:

[1, 3, 13, 37, 39, 111, 481, 1443, 15031, 45093, 195403, 556147, 586209, 1668441, 7229911, 21689733]

約数ペア:

[(1, 21689733), (3, 7229911), (13, 1668441), (37, 586209), (39, 556147), (111, 195403), (481, 45093), (1443, 15031)]