20178809

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{107}}^1\times {\mathrm{929}}^1$

素因数の和:1072

約数の個数: 16

約数和(自身を含む): 24105600

約数和(自身を除く): 3926791

約数列:

[1, 7, 29, 107, 203, 749, 929, 3103, 6503, 21721, 26941, 99403, 188587, 695821, 2882687, 20178809]

約数ペア:

[(1, 20178809), (7, 2882687), (29, 695821), (107, 188587), (203, 99403), (749, 26941), (929, 21721), (3103, 6503)]