21382713

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{271}}^1\times {\mathrm{797}}^1$

素因数の和:1085

約数の個数: 24

約数和(自身を含む): 33860736

約数和(自身を除く): 12478023

約数列:

[1, 3, 9, 11, 33, 99, 271, 797, 813, 2391, 2439, 2981, 7173, 8767, 8943, 26301, 26829, 78903, 215987, 647961, 1943883, 2375857, 7127571, 21382713]

約数ペア:

[(1, 21382713), (3, 7127571), (9, 2375857), (11, 1943883), (33, 647961), (99, 215987), (271, 78903), (797, 26829), (813, 26301), (2391, 8943), (2439, 8767), (2981, 7173)]