215567715

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{18401}}^1$

素因数の和:18491

約数の個数: 32

約数和(自身を含む): 381583872

約数和(自身を除く): 166016157

約数列:

[1, 3, 5, 11, 15, 33, 55, 71, 165, 213, 355, 781, 1065, 2343, 3905, 11715, 18401, 55203, 92005, 202411, 276015, 607233, 1012055, 1306471, 3036165, 3919413, 6532355, 14371181, 19597065, 43113543, 71855905, 215567715]

約数ペア:

[(1, 215567715), (3, 71855905), (5, 43113543), (11, 19597065), (15, 14371181), (33, 6532355), (55, 3919413), (71, 3036165), (165, 1306471), (213, 1012055), (355, 607233), (781, 276015), (1065, 202411), (2343, 92005), (3905, 55203), (11715, 18401)]