128537829

素因数分解:

$3^2\times 7^2\times {\mathrm{41}}^1\times {\mathrm{7109}}^1$

素因数の和:7170

約数の個数: 36

約数和(自身を含む): 221277420

約数和(自身を除く): 92739591

約数列:

[1, 3, 7, 9, 21, 41, 49, 63, 123, 147, 287, 369, 441, 861, 2009, 2583, 6027, 7109, 18081, 21327, 49763, 63981, 149289, 291469, 348341, 447867, 874407, 1045023, 2040283, 2623221, 3135069, 6120849, 14281981, 18362547, 42845943, 128537829]

約数ペア:

[(1, 128537829), (3, 42845943), (7, 18362547), (9, 14281981), (21, 6120849), (41, 3135069), (49, 2623221), (63, 2040283), (123, 1045023), (147, 874407), (287, 447867), (369, 348341), (441, 291469), (861, 149289), (2009, 63981), (2583, 49763), (6027, 21327), (7109, 18081)]