21987318

素因数分解:

$2^1\times 3^1\times {\mathrm{1039}}^1\times {\mathrm{3527}}^1$

素因数の和:4571

約数の個数: 16

約数和(自身を含む): 44029440

約数和(自身を除く): 22042122

約数列:

[1, 2, 3, 6, 1039, 2078, 3117, 3527, 6234, 7054, 10581, 21162, 3664553, 7329106, 10993659, 21987318]

約数ペア:

[(1, 21987318), (2, 10993659), (3, 7329106), (6, 3664553), (1039, 21162), (2078, 10581), (3117, 7054), (3527, 6234)]