7172385

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{2557}}^1$

素因数の和:2593

約数の個数: 32

約数和(自身を含む): 13260672

約数和(自身を除く): 6088287

約数列:

[1, 3, 5, 11, 15, 17, 33, 51, 55, 85, 165, 187, 255, 561, 935, 2557, 2805, 7671, 12785, 28127, 38355, 43469, 84381, 130407, 140635, 217345, 421905, 478159, 652035, 1434477, 2390795, 7172385]

約数ペア:

[(1, 7172385), (3, 2390795), (5, 1434477), (11, 652035), (15, 478159), (17, 421905), (33, 217345), (51, 140635), (55, 130407), (85, 84381), (165, 43469), (187, 38355), (255, 28127), (561, 12785), (935, 7671), (2557, 2805)]