21125254

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{367}}^1\times {\mathrm{1693}}^1$

素因数の和:2079

約数の個数: 16

約数和(自身を含む): 33663168

約数和(自身を除く): 12537914

約数列:

[1, 2, 17, 34, 367, 734, 1693, 3386, 6239, 12478, 28781, 57562, 621331, 1242662, 10562627, 21125254]

約数ペア:

[(1, 21125254), (2, 10562627), (17, 1242662), (34, 621331), (367, 57562), (734, 28781), (1693, 12478), (3386, 6239)]