21968078

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{9161}}^1$

素因数の和:9283

約数の個数: 16

約数和(自身を含む): 36281520

約数和(自身を除く): 14313442

約数列:

[1, 2, 11, 22, 109, 218, 1199, 2398, 9161, 18322, 100771, 201542, 998549, 1997098, 10984039, 21968078]

約数ペア:

[(1, 21968078), (2, 10984039), (11, 1997098), (22, 998549), (109, 201542), (218, 100771), (1199, 18322), (2398, 9161)]