18718328

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{131}}^1\times {\mathrm{337}}^1$

素因数の和:527

約数の個数: 32

約数和(自身を含む): 36138960

約数和(自身を除く): 17420632

約数列:

[1, 2, 4, 8, 53, 106, 131, 212, 262, 337, 424, 524, 674, 1048, 1348, 2696, 6943, 13886, 17861, 27772, 35722, 44147, 55544, 71444, 88294, 142888, 176588, 353176, 2339791, 4679582, 9359164, 18718328]

約数ペア:

[(1, 18718328), (2, 9359164), (4, 4679582), (8, 2339791), (53, 353176), (106, 176588), (131, 142888), (212, 88294), (262, 71444), (337, 55544), (424, 44147), (524, 35722), (674, 27772), (1048, 17861), (1348, 13886), (2696, 6943)]