199686529

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{563}}^1\times {\mathrm{2203}}^1$

素因数の和:2796

約数の個数: 16

約数和(自身を含む): 238666752

約数和(自身を除く): 38980223

約数列:

[1, 7, 23, 161, 563, 2203, 3941, 12949, 15421, 50669, 90643, 354683, 1240289, 8682023, 28526647, 199686529]

約数ペア:

[(1, 199686529), (7, 28526647), (23, 8682023), (161, 1240289), (563, 354683), (2203, 90643), (3941, 50669), (12949, 15421)]