21666085

素因数分解:

$5^1\times 7^2\times {\mathrm{191}}^1\times {\mathrm{463}}^1$

素因数の和:673

約数の個数: 24

約数和(自身を含む): 30468096

約数和(自身を除く): 8802011

約数列:

[1, 5, 7, 35, 49, 191, 245, 463, 955, 1337, 2315, 3241, 6685, 9359, 16205, 22687, 46795, 88433, 113435, 442165, 619031, 3095155, 4333217, 21666085]

約数ペア:

[(1, 21666085), (5, 4333217), (7, 3095155), (35, 619031), (49, 442165), (191, 113435), (245, 88433), (463, 46795), (955, 22687), (1337, 16205), (2315, 9359), (3241, 6685)]