19749573

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{997}}^1$

素因数の和:1105

約数の個数: 24

約数和(自身を含む): 29892096

約数和(自身を除く): 10142523

約数列:

[1, 3, 9, 31, 71, 93, 213, 279, 639, 997, 2201, 2991, 6603, 8973, 19809, 30907, 70787, 92721, 212361, 278163, 637083, 2194397, 6583191, 19749573]

約数ペア:

[(1, 19749573), (3, 6583191), (9, 2194397), (31, 637083), (71, 278163), (93, 212361), (213, 92721), (279, 70787), (639, 30907), (997, 19809), (2201, 8973), (2991, 6603)]