21164060

素因数分解:

$2^2\times 5^1\times {\mathrm{1058203}}^1$

素因数の和:1058212

約数の個数: 12

約数和(自身を含む): 44444568

約数和(自身を除く): 23280508

約数列:

[1, 2, 4, 5, 10, 20, 1058203, 2116406, 4232812, 5291015, 10582030, 21164060]

約数ペア:

[(1, 21164060), (2, 10582030), (4, 5291015), (5, 4232812), (10, 2116406), (20, 1058203)]