217618515

素因数分解:

$3^3\times 5^1\times {\mathrm{967}}^1\times {\mathrm{1667}}^1$

素因数の和:2648

約数の個数: 32

約数和(自身を含む): 387509760

約数和(自身を除く): 169891245

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 967, 1667, 2901, 4835, 5001, 8335, 8703, 14505, 15003, 25005, 26109, 43515, 45009, 75015, 130545, 225045, 1611989, 4835967, 8059945, 14507901, 24179835, 43523703, 72539505, 217618515]

約数ペア:

[(1, 217618515), (3, 72539505), (5, 43523703), (9, 24179835), (15, 14507901), (27, 8059945), (45, 4835967), (135, 1611989), (967, 225045), (1667, 130545), (2901, 75015), (4835, 45009), (5001, 43515), (8335, 26109), (8703, 25005), (14505, 15003)]