20674717

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{419}}^1$

素因数の和:505

約数の個数: 24

約数和(自身を含む): 25855200

約数和(自身を除く): 5180483

約数列:

[1, 7, 19, 49, 53, 133, 371, 419, 931, 1007, 2597, 2933, 7049, 7961, 20531, 22207, 49343, 55727, 155449, 390089, 421933, 1088143, 2953531, 20674717]

約数ペア:

[(1, 20674717), (7, 2953531), (19, 1088143), (49, 421933), (53, 390089), (133, 155449), (371, 55727), (419, 49343), (931, 22207), (1007, 20531), (2597, 7961), (2933, 7049)]