16821207

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{1319}}^1$

素因数の和:1447

約数の個数: 24

約数和(自身を含む): 26426400

約数和(自身を除く): 9605193

約数列:

[1, 3, 9, 13, 39, 109, 117, 327, 981, 1319, 1417, 3957, 4251, 11871, 12753, 17147, 51441, 143771, 154323, 431313, 1293939, 1869023, 5607069, 16821207]

約数ペア:

[(1, 16821207), (3, 5607069), (9, 1869023), (13, 1293939), (39, 431313), (109, 154323), (117, 143771), (327, 51441), (981, 17147), (1319, 12753), (1417, 11871), (3957, 4251)]