21964959

素因数分解:

$3^3\times {\mathrm{43}}^1\times {\mathrm{18919}}^1$

素因数の和:18971

約数の個数: 16

約数和(自身を含む): 33299200

約数和(自身を除く): 11334241

約数列:

[1, 3, 9, 27, 43, 129, 387, 1161, 18919, 56757, 170271, 510813, 813517, 2440551, 7321653, 21964959]

約数ペア:

[(1, 21964959), (3, 7321653), (9, 2440551), (27, 813517), (43, 510813), (129, 170271), (387, 56757), (1161, 18919)]