65121721

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{659}}^1\times {\mathrm{743}}^1$

素因数の和:1428

約数の個数: 16

約数和(自身を含む): 78566400

約数和(自身を除く): 13444679

約数列:

[1, 7, 19, 133, 659, 743, 4613, 5201, 12521, 14117, 87647, 98819, 489637, 3427459, 9303103, 65121721]

約数ペア:

[(1, 65121721), (7, 9303103), (19, 3427459), (133, 489637), (659, 98819), (743, 87647), (4613, 14117), (5201, 12521)]