21365030

素因数分解:

$2^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{25741}}^1$

素因数の和:25831

約数の個数: 16

約数和(自身を含む): 38921904

約数和(自身を除く): 17556874

約数列:

[1, 2, 5, 10, 83, 166, 415, 830, 25741, 51482, 128705, 257410, 2136503, 4273006, 10682515, 21365030]

約数ペア:

[(1, 21365030), (2, 10682515), (5, 4273006), (10, 2136503), (83, 257410), (166, 128705), (415, 51482), (830, 25741)]