21912149

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{2459}}^1$

素因数の和:2552

約数の個数: 16

約数和(自身を含む): 26764800

約数和(自身を除く): 4852651

約数列:

[1, 7, 19, 67, 133, 469, 1273, 2459, 8911, 17213, 46721, 164753, 327047, 1153271, 3130307, 21912149]

約数ペア:

[(1, 21912149), (7, 3130307), (19, 1153271), (67, 327047), (133, 164753), (469, 46721), (1273, 17213), (2459, 8911)]