12557781

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{251}}^1$

素因数の和:386

約数の個数: 32

約数和(自身を含む): 19958400

約数和(自身を除く): 7400619

約数列:

[1, 3, 9, 17, 27, 51, 109, 153, 251, 327, 459, 753, 981, 1853, 2259, 2943, 4267, 5559, 6777, 12801, 16677, 27359, 38403, 50031, 82077, 115209, 246231, 465103, 738693, 1395309, 4185927, 12557781]

約数ペア:

[(1, 12557781), (3, 4185927), (9, 1395309), (17, 738693), (27, 465103), (51, 246231), (109, 115209), (153, 82077), (251, 50031), (327, 38403), (459, 27359), (753, 16677), (981, 12801), (1853, 6777), (2259, 5559), (2943, 4267)]