21792043

素因数分解:

$7^1\times {\mathrm{13}}^4\times {\mathrm{109}}^1$

素因数の和:168

約数の個数: 20

約数和(自身を含む): 27228080

約数和(自身を除く): 5436037

約数列:

[1, 7, 13, 91, 109, 169, 763, 1183, 1417, 2197, 9919, 15379, 18421, 28561, 128947, 199927, 239473, 1676311, 3113149, 21792043]

約数ペア:

[(1, 21792043), (7, 3113149), (13, 1676311), (91, 239473), (109, 199927), (169, 128947), (763, 28561), (1183, 18421), (1417, 15379), (2197, 9919)]