1289716561

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{241}}^1\times {\mathrm{40237}}^1$

素因数の和:40504

約数の個数: 16

約数和(自身を含む): 1558015360

約数和(自身を除く): 268298799

約数列:

[1, 7, 19, 133, 241, 1687, 4579, 32053, 40237, 281659, 764503, 5351521, 9697117, 67879819, 184245223, 1289716561]

約数ペア:

[(1, 1289716561), (7, 184245223), (19, 67879819), (133, 9697117), (241, 5351521), (1687, 764503), (4579, 281659), (32053, 40237)]