21712893

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{9901}}^1$

素因数の和:9964

約数の個数: 16

約数和(自身を含む): 31369536

約数和(自身を除く): 9656643

約数列:

[1, 3, 17, 43, 51, 129, 731, 2193, 9901, 29703, 168317, 425743, 504951, 1277229, 7237631, 21712893]

約数ペア:

[(1, 21712893), (3, 7237631), (17, 1277229), (43, 504951), (51, 425743), (129, 168317), (731, 29703), (2193, 9901)]