19509809

素因数分解:

${\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1\times {\mathrm{239}}^1$

素因数の和:472

約数の個数: 16

約数和(自身を含む): 22014720

約数和(自身を除く): 2504911

約数列:

[1, 11, 41, 181, 239, 451, 1991, 2629, 7421, 9799, 43259, 81631, 107789, 475849, 1773619, 19509809]

約数ペア:

[(1, 19509809), (11, 1773619), (41, 475849), (181, 107789), (239, 81631), (451, 43259), (1991, 9799), (2629, 7421)]