21867769

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1399}}^1$

素因数の和:1453

約数の個数: 24

約数和(自身を含む): 28728000

約数和(自身を除く): 6860231

約数列:

[1, 7, 11, 29, 49, 77, 203, 319, 539, 1399, 1421, 2233, 9793, 15389, 15631, 40571, 68551, 107723, 283997, 446281, 754061, 1987979, 3123967, 21867769]

約数ペア:

[(1, 21867769), (7, 3123967), (11, 1987979), (29, 754061), (49, 446281), (77, 283997), (203, 107723), (319, 68551), (539, 40571), (1399, 15631), (1421, 15389), (2233, 9793)]