21104397741

素因数分解:

$3^1\times 7^1\times {\mathrm{1021}}^1\times {\mathrm{984301}}^1$

素因数の和:985332

約数の個数: 16

約数和(自身を含む): 32190612608

約数和(自身を除く): 11086214867

約数列:

[1, 3, 7, 21, 1021, 3063, 7147, 21441, 984301, 2952903, 6890107, 20670321, 1004971321, 3014913963, 7034799247, 21104397741]

約数ペア:

[(1, 21104397741), (3, 7034799247), (7, 3014913963), (21, 1004971321), (1021, 20670321), (3063, 6890107), (7147, 2952903), (21441, 984301)]