21242637

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{3863}}^1$

素因数の和:3929

約数の個数: 24

約数和(自身を含む): 33755904

約数和(自身を除く): 12513267

約数列:

[1, 3, 9, 13, 39, 47, 117, 141, 423, 611, 1833, 3863, 5499, 11589, 34767, 50219, 150657, 181561, 451971, 544683, 1634049, 2360293, 7080879, 21242637]

約数ペア:

[(1, 21242637), (3, 7080879), (9, 2360293), (13, 1634049), (39, 544683), (47, 451971), (117, 181561), (141, 150657), (423, 50219), (611, 34767), (1833, 11589), (3863, 5499)]