9987891

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1$

素因数の和:203

約数の個数: 32

約数和(自身を含む): 14883840

約数和(自身を除く): 4895949

約数列:

[1, 3, 17, 37, 51, 67, 79, 111, 201, 237, 629, 1139, 1343, 1887, 2479, 2923, 3417, 4029, 5293, 7437, 8769, 15879, 42143, 49691, 89981, 126429, 149073, 195841, 269943, 587523, 3329297, 9987891]

約数ペア:

[(1, 9987891), (3, 3329297), (17, 587523), (37, 269943), (51, 195841), (67, 149073), (79, 126429), (111, 89981), (201, 49691), (237, 42143), (629, 15879), (1139, 8769), (1343, 7437), (1887, 5293), (2479, 4029), (2923, 3417)]