20797706405

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{126943}}^1$

素因数の和:127137

約数の個数: 32

約数和(自身を含む): 29637869568

約数和(自身を除く): 8840163163

約数列:

[1, 5, 7, 31, 35, 151, 155, 217, 755, 1057, 1085, 4681, 5285, 23405, 32767, 126943, 163835, 634715, 888601, 3935233, 4443005, 19168393, 19676165, 27546631, 95841965, 134178751, 137733155, 594220183, 670893755, 2971100915, 4159541281, 20797706405]

約数ペア:

[(1, 20797706405), (5, 4159541281), (7, 2971100915), (31, 670893755), (35, 594220183), (151, 137733155), (155, 134178751), (217, 95841965), (755, 27546631), (1057, 19676165), (1085, 19168393), (4681, 4443005), (5285, 3935233), (23405, 888601), (32767, 634715), (126943, 163835)]