21193269

素因数分解:

$3^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{3251}}^1$

素因数の和:3348

約数の個数: 16

約数和(自身を含む): 29502144

約数和(自身を除く): 8308875

約数列:

[1, 3, 41, 53, 123, 159, 2173, 3251, 6519, 9753, 133291, 172303, 399873, 516909, 7064423, 21193269]

約数ペア:

[(1, 21193269), (3, 7064423), (41, 516909), (53, 399873), (123, 172303), (159, 133291), (2173, 9753), (3251, 6519)]