21148983

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{1439}}^1$

素因数の和:1539

約数の個数: 24

約数和(自身を含む): 32348160

約数和(自身を除く): 11199177

約数列:

[1, 3, 9, 23, 69, 71, 207, 213, 639, 1439, 1633, 4317, 4899, 12951, 14697, 33097, 99291, 102169, 297873, 306507, 919521, 2349887, 7049661, 21148983]

約数ペア:

[(1, 21148983), (3, 7049661), (9, 2349887), (23, 919521), (69, 306507), (71, 297873), (207, 102169), (213, 99291), (639, 33097), (1439, 14697), (1633, 12951), (4317, 4899)]