21152967

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{3581}}^1$

素因数の和:3774

約数の個数: 16

約数和(自身を含む): 30948480

約数和(自身を除く): 9795513

約数列:

[1, 3, 11, 33, 179, 537, 1969, 3581, 5907, 10743, 39391, 118173, 640999, 1922997, 7050989, 21152967]

約数ペア:

[(1, 21152967), (3, 7050989), (11, 1922997), (33, 640999), (179, 118173), (537, 39391), (1969, 10743), (3581, 5907)]