19427860

素因数分解:

$2^2\times 5^1\times {\mathrm{103}}^1\times {\mathrm{9431}}^1$

素因数の和:9543

約数の個数: 24

約数和(自身を含む): 41198976

約数和(自身を除く): 21771116

約数列:

[1, 2, 4, 5, 10, 20, 103, 206, 412, 515, 1030, 2060, 9431, 18862, 37724, 47155, 94310, 188620, 971393, 1942786, 3885572, 4856965, 9713930, 19427860]

約数ペア:

[(1, 19427860), (2, 9713930), (4, 4856965), (5, 3885572), (10, 1942786), (20, 971393), (103, 188620), (206, 94310), (412, 47155), (515, 37724), (1030, 18862), (2060, 9431)]