399715706887

素因数分解:

$7^1\times {\mathrm{1543}}^1\times {\mathrm{1693}}^1\times {\mathrm{21859}}^1$

素因数の和:25102

約数の個数: 16

約数和(自身を含む): 457404935680

約数和(自身を除く): 57689228793

約数列:

[1, 7, 1543, 1693, 10801, 11851, 21859, 153013, 2612299, 18286093, 33728437, 37007287, 236099059, 259051009, 57102243841, 399715706887]

約数ペア:

[(1, 399715706887), (7, 57102243841), (1543, 259051009), (1693, 236099059), (10801, 37007287), (11851, 33728437), (21859, 18286093), (153013, 2612299)]