21300007

素因数分解:

${\mathrm{19}}^1\times {\mathrm{29}}^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1$

素因数の和:151

約数の個数: 24

約数和(自身を含む): 24527360

約数和(自身を除く): 3227353

約数列:

[1, 19, 29, 31, 43, 551, 589, 817, 841, 899, 1247, 1333, 15979, 17081, 23693, 25327, 26071, 36163, 38657, 495349, 687097, 734483, 1121053, 21300007]

約数ペア:

[(1, 21300007), (19, 1121053), (29, 734483), (31, 687097), (43, 495349), (551, 38657), (589, 36163), (817, 26071), (841, 25327), (899, 23693), (1247, 17081), (1333, 15979)]