681948

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{997}}^1$

素因数の和:1026

約数の個数: 36

約数和(自身を含む): 1816360

約数和(自身を除く): 1134412

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 114, 171, 228, 342, 684, 997, 1994, 2991, 3988, 5982, 8973, 11964, 17946, 18943, 35892, 37886, 56829, 75772, 113658, 170487, 227316, 340974, 681948]

約数ペア:

[(1, 681948), (2, 340974), (3, 227316), (4, 170487), (6, 113658), (9, 75772), (12, 56829), (18, 37886), (19, 35892), (36, 18943), (38, 17946), (57, 11964), (76, 8973), (114, 5982), (171, 3988), (228, 2991), (342, 1994), (684, 997)]