22121561

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{12491}}^1$

素因数の和:12532

約数の個数: 16

約数和(自身を含む): 28781568

約数和(自身を除く): 6660007

約数列:

[1, 7, 11, 23, 77, 161, 253, 1771, 12491, 87437, 137401, 287293, 961807, 2011051, 3160223, 22121561]

約数ペア:

[(1, 22121561), (7, 3160223), (11, 2011051), (23, 961807), (77, 287293), (161, 137401), (253, 87437), (1771, 12491)]