21421876

素因数分解:

$2^2\times 7^1\times {\mathrm{263}}^1\times {\mathrm{2909}}^1$

素因数の和:3183

約数の個数: 24

約数和(自身を含む): 43021440

約数和(自身を除く): 21599564

約数列:

[1, 2, 4, 7, 14, 28, 263, 526, 1052, 1841, 2909, 3682, 5818, 7364, 11636, 20363, 40726, 81452, 765067, 1530134, 3060268, 5355469, 10710938, 21421876]

約数ペア:

[(1, 21421876), (2, 10710938), (4, 5355469), (7, 3060268), (14, 1530134), (28, 765067), (263, 81452), (526, 40726), (1052, 20363), (1841, 11636), (2909, 7364), (3682, 5818)]