199901521

素因数分解:

${\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1\times {\mathrm{2039}}^1$

素因数の和:2208

約数の個数: 16

約数和(自身を含む): 217382400

約数和(自身を除く): 17480879

約数列:

[1, 17, 73, 79, 1241, 1343, 2039, 5767, 34663, 98039, 148847, 161081, 2530399, 2738377, 11758913, 199901521]

約数ペア:

[(1, 199901521), (17, 11758913), (73, 2738377), (79, 2530399), (1241, 161081), (1343, 148847), (2039, 98039), (5767, 34663)]