221255561

素因数分解:

${\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{439}}^1\times {\mathrm{1289}}^1$

素因数の和:1768

約数の個数: 16

約数和(自身を含む): 245203200

約数和(自身を除く): 23947639

約数列:

[1, 17, 23, 391, 439, 1289, 7463, 10097, 21913, 29647, 171649, 503999, 565871, 9619807, 13015033, 221255561]

約数ペア:

[(1, 221255561), (17, 13015033), (23, 9619807), (391, 565871), (439, 503999), (1289, 171649), (7463, 29647), (10097, 21913)]