28211631

素因数分解:

$3^1\times 7^1\times {\mathrm{421}}^1\times {\mathrm{3191}}^1$

素因数の和:3622

約数の個数: 16

約数和(自身を含む): 43104768

約数和(自身を除く): 14893137

約数列:

[1, 3, 7, 21, 421, 1263, 2947, 3191, 8841, 9573, 22337, 67011, 1343411, 4030233, 9403877, 28211631]

約数ペア:

[(1, 28211631), (3, 9403877), (7, 4030233), (21, 1343411), (421, 67011), (1263, 22337), (2947, 9573), (3191, 8841)]