18991330

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{82571}}^1$

素因数の和:82601

約数の個数: 16

約数和(自身を含む): 35671104

約数和(自身を除く): 16679774

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 82571, 165142, 412855, 825710, 1899133, 3798266, 9495665, 18991330]

約数ペア:

[(1, 18991330), (2, 9495665), (5, 3798266), (10, 1899133), (23, 825710), (46, 412855), (115, 165142), (230, 82571)]