18971590

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{15679}}^1$

素因数の和:15708

約数の個数: 24

約数和(自身を含む): 37537920

約数和(自身を除く): 18566330

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 242, 605, 1210, 15679, 31358, 78395, 156790, 172469, 344938, 862345, 1724690, 1897159, 3794318, 9485795, 18971590]

約数ペア:

[(1, 18971590), (2, 9485795), (5, 3794318), (10, 1897159), (11, 1724690), (22, 862345), (55, 344938), (110, 172469), (121, 156790), (242, 78395), (605, 31358), (1210, 15679)]