198701279

素因数分解:

$7^1\times {\mathrm{127}}^1\times {\mathrm{397}}^1\times {\mathrm{563}}^1$

素因数の和:1094

約数の個数: 16

約数和(自身を含む): 229859328

約数和(自身を除く): 31158049

約数列:

[1, 7, 127, 397, 563, 889, 2779, 3941, 50419, 71501, 223511, 352933, 500507, 1564577, 28385897, 198701279]

約数ペア:

[(1, 198701279), (7, 28385897), (127, 1564577), (397, 500507), (563, 352933), (889, 223511), (2779, 71501), (3941, 50419)]