21260230

素因数分解:

$2^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{20641}}^1$

素因数の和:20751

約数の個数: 16

約数和(自身を含む): 38641824

約数和(自身を除く): 17381594

約数列:

[1, 2, 5, 10, 103, 206, 515, 1030, 20641, 41282, 103205, 206410, 2126023, 4252046, 10630115, 21260230]

約数ペア:

[(1, 21260230), (2, 10630115), (5, 4252046), (10, 2126023), (103, 206410), (206, 103205), (515, 41282), (1030, 20641)]