28005117

素因数分解:

$3^1\times 7^2\times {\mathrm{59}}^1\times {\mathrm{3229}}^1$

素因数の和:3305

約数の個数: 24

約数和(自身を含む): 44186400

約数和(自身を除く): 16181283

約数列:

[1, 3, 7, 21, 49, 59, 147, 177, 413, 1239, 2891, 3229, 8673, 9687, 22603, 67809, 158221, 190511, 474663, 571533, 1333577, 4000731, 9335039, 28005117]

約数ペア:

[(1, 28005117), (3, 9335039), (7, 4000731), (21, 1333577), (49, 571533), (59, 474663), (147, 190511), (177, 158221), (413, 67809), (1239, 22603), (2891, 9687), (3229, 8673)]