21495357

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{4481}}^1$

素因数の和:4541

約数の個数: 24

約数和(自身を含む): 34260408

約数和(自身を除く): 12765051

約数列:

[1, 3, 9, 13, 39, 41, 117, 123, 369, 533, 1599, 4481, 4797, 13443, 40329, 58253, 174759, 183721, 524277, 551163, 1653489, 2388373, 7165119, 21495357]

約数ペア:

[(1, 21495357), (3, 7165119), (9, 2388373), (13, 1653489), (39, 551163), (41, 524277), (117, 183721), (123, 174759), (369, 58253), (533, 40329), (1599, 13443), (4481, 4797)]