28972881

素因数分解:

$3^2\times 7^1\times {\mathrm{271}}^1\times {\mathrm{1697}}^1$

素因数の和:1981

約数の個数: 24

約数和(自身を含む): 48033024

約数和(自身を除く): 19060143

約数列:

[1, 3, 7, 9, 21, 63, 271, 813, 1697, 1897, 2439, 5091, 5691, 11879, 15273, 17073, 35637, 106911, 459887, 1379661, 3219209, 4138983, 9657627, 28972881]

約数ペア:

[(1, 28972881), (3, 9657627), (7, 4138983), (9, 3219209), (21, 1379661), (63, 459887), (271, 106911), (813, 35637), (1697, 17073), (1897, 15273), (2439, 11879), (5091, 5691)]