21152947

素因数分解:

${\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1523}}^1$

素因数の和:1602

約数の個数: 16

約数和(自身を含む): 24140160

約数和(自身を除く): 2987213

約数列:

[1, 17, 19, 43, 323, 731, 817, 1523, 13889, 25891, 28937, 65489, 491929, 1113313, 1244291, 21152947]

約数ペア:

[(1, 21152947), (17, 1244291), (19, 1113313), (43, 491929), (323, 65489), (731, 28937), (817, 25891), (1523, 13889)]