21062590

素因数分解:

$2^1\times 5^1\times {\mathrm{449}}^1\times {\mathrm{4691}}^1$

素因数の和:5147

約数の個数: 16

約数和(自身を含む): 38005200

約数和(自身を除く): 16942610

約数列:

[1, 2, 5, 10, 449, 898, 2245, 4490, 4691, 9382, 23455, 46910, 2106259, 4212518, 10531295, 21062590]

約数ペア:

[(1, 21062590), (2, 10531295), (5, 4212518), (10, 2106259), (449, 46910), (898, 23455), (2245, 9382), (4490, 4691)]