16721871

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{251}}^1\times {\mathrm{419}}^1$

素因数の和:726

約数の個数: 16

約数和(自身を含む): 22861440

約数和(自身を除く): 6139569

約数列:

[1, 3, 53, 159, 251, 419, 753, 1257, 13303, 22207, 39909, 66621, 105169, 315507, 5573957, 16721871]

約数ペア:

[(1, 16721871), (3, 5573957), (53, 315507), (159, 105169), (251, 66621), (419, 39909), (753, 22207), (1257, 13303)]