21648208

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{79589}}^1$

素因数の和:79614

約数の個数: 20

約数和(自身を含む): 44411220

約数和(自身を除く): 22763012

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 79589, 159178, 318356, 636712, 1273424, 1353013, 2706026, 5412052, 10824104, 21648208]

約数ペア:

[(1, 21648208), (2, 10824104), (4, 5412052), (8, 2706026), (16, 1353013), (17, 1273424), (34, 636712), (68, 318356), (136, 159178), (272, 79589)]