21813867

素因数分解:

$3^6\times {\mathrm{23}}^1\times {\mathrm{1301}}^1$

素因数の和:1342

約数の個数: 28

約数和(自身を含む): 34154064

約数和(自身を除く): 12340197

約数列:

[1, 3, 9, 23, 27, 69, 81, 207, 243, 621, 729, 1301, 1863, 3903, 5589, 11709, 16767, 29923, 35127, 89769, 105381, 269307, 316143, 807921, 948429, 2423763, 7271289, 21813867]

約数ペア:

[(1, 21813867), (3, 7271289), (9, 2423763), (23, 948429), (27, 807921), (69, 316143), (81, 269307), (207, 105381), (243, 89769), (621, 35127), (729, 29923), (1301, 16767), (1863, 11709), (3903, 5589)]