28691505

素因数分解:

$3^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{2269}}^1$

素因数の和:2561

約数の個数: 24

約数和(自身を含む): 49930920

約数和(自身を除く): 21239415

約数列:

[1, 3, 5, 9, 15, 45, 281, 843, 1405, 2269, 2529, 4215, 6807, 11345, 12645, 20421, 34035, 102105, 637589, 1912767, 3187945, 5738301, 9563835, 28691505]

約数ペア:

[(1, 28691505), (3, 9563835), (5, 5738301), (9, 3187945), (15, 1912767), (45, 637589), (281, 102105), (843, 34035), (1405, 20421), (2269, 12645), (2529, 11345), (4215, 6807)]