19541264

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{28403}}^1$

素因数の和:28454

約数の個数: 20

約数和(自身を含む): 38743056

約数和(自身を除く): 19201792

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 28403, 56806, 113612, 227224, 454448, 1221329, 2442658, 4885316, 9770632, 19541264]

約数ペア:

[(1, 19541264), (2, 9770632), (4, 4885316), (8, 2442658), (16, 1221329), (43, 454448), (86, 227224), (172, 113612), (344, 56806), (688, 28403)]