21340910

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{52051}}^1$

素因数の和:52099

約数の個数: 16

約数和(自身を含む): 39351312

約数和(自身を除く): 18010402

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 52051, 104102, 260255, 520510, 2134091, 4268182, 10670455, 21340910]

約数ペア:

[(1, 21340910), (2, 10670455), (5, 4268182), (10, 2134091), (41, 520510), (82, 260255), (205, 104102), (410, 52051)]