28142877

素因数分解:

$3^1\times 7^1\times {\mathrm{571}}^1\times {\mathrm{2347}}^1$

素因数の和:2928

約数の個数: 16

約数和(自身を含む): 42977792

約数和(自身を除く): 14834915

約数列:

[1, 3, 7, 21, 571, 1713, 2347, 3997, 7041, 11991, 16429, 49287, 1340137, 4020411, 9380959, 28142877]

約数ペア:

[(1, 28142877), (3, 9380959), (7, 4020411), (21, 1340137), (571, 49287), (1713, 16429), (2347, 11991), (3997, 7041)]