21486712

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{206603}}^1$

素因数の和:206622

約数の個数: 16

約数和(自身を含む): 43386840

約数和(自身を除く): 21900128

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 206603, 413206, 826412, 1652824, 2685839, 5371678, 10743356, 21486712]

約数ペア:

[(1, 21486712), (2, 10743356), (4, 5371678), (8, 2685839), (13, 1652824), (26, 826412), (52, 413206), (104, 206603)]