219774578

素因数分解:

$2^1\times {\mathrm{137}}^1\times {\mathrm{257}}^1\times {\mathrm{3121}}^1$

素因数の和:3517

約数の個数: 16

約数和(自身を含む): 333467064

約数和(自身を除く): 113692486

約数列:

[1, 2, 137, 257, 274, 514, 3121, 6242, 35209, 70418, 427577, 802097, 855154, 1604194, 109887289, 219774578]

約数ペア:

[(1, 219774578), (2, 109887289), (137, 1604194), (257, 855154), (274, 802097), (514, 427577), (3121, 70418), (6242, 35209)]