21628222

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{140443}}^1$

素因数の和:140463

約数の個数: 16

約数和(自身を含む): 40447872

約数和(自身を除く): 18819650

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 140443, 280886, 983101, 1544873, 1966202, 3089746, 10814111, 21628222]

約数ペア:

[(1, 21628222), (2, 10814111), (7, 3089746), (11, 1966202), (14, 1544873), (22, 983101), (77, 280886), (154, 140443)]