21925395

素因数分解:

$3^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{5023}}^1$

素因数の和:5131

約数の個数: 24

約数和(自身を含む): 38403456

約数和(自身を除く): 16478061

約数列:

[1, 3, 5, 9, 15, 45, 97, 291, 485, 873, 1455, 4365, 5023, 15069, 25115, 45207, 75345, 226035, 487231, 1461693, 2436155, 4385079, 7308465, 21925395]

約数ペア:

[(1, 21925395), (3, 7308465), (5, 4385079), (9, 2436155), (15, 1461693), (45, 487231), (97, 226035), (291, 75345), (485, 45207), (873, 25115), (1455, 15069), (4365, 5023)]