217816995

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{18593}}^1$

素因数の和:18683

約数の個数: 32

約数和(自身を含む): 385565184

約数和(自身を除く): 167748189

約数列:

[1, 3, 5, 11, 15, 33, 55, 71, 165, 213, 355, 781, 1065, 2343, 3905, 11715, 18593, 55779, 92965, 204523, 278895, 613569, 1022615, 1320103, 3067845, 3960309, 6600515, 14521133, 19801545, 43563399, 72605665, 217816995]

約数ペア:

[(1, 217816995), (3, 72605665), (5, 43563399), (11, 19801545), (15, 14521133), (33, 6600515), (55, 3960309), (71, 3067845), (165, 1320103), (213, 1022615), (355, 613569), (781, 278895), (1065, 204523), (2343, 92965), (3905, 55779), (11715, 18593)]