199987879

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{431}}^1\times {\mathrm{5099}}^1$

素因数の和:5550

約数の個数: 16

約数和(自身を含む): 246758400

約数和(自身を除く): 46770521

約数列:

[1, 7, 13, 91, 431, 3017, 5099, 5603, 35693, 39221, 66287, 464009, 2197669, 15383683, 28569697, 199987879]

約数ペア:

[(1, 199987879), (7, 28569697), (13, 15383683), (91, 2197669), (431, 464009), (3017, 66287), (5099, 39221), (5603, 35693)]