21376377

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{263}}^1\times {\mathrm{821}}^1$

素因数の和:1101

約数の個数: 24

約数和(自身を含む): 33853248

約数和(自身を除く): 12476871

約数列:

[1, 3, 9, 11, 33, 99, 263, 789, 821, 2367, 2463, 2893, 7389, 8679, 9031, 26037, 27093, 81279, 215923, 647769, 1943307, 2375153, 7125459, 21376377]

約数ペア:

[(1, 21376377), (3, 7125459), (9, 2375153), (11, 1943307), (33, 647769), (99, 215923), (263, 81279), (789, 27093), (821, 26037), (2367, 9031), (2463, 8679), (2893, 7389)]