20112261

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{179}}^1$

素因数の和:305

約数の個数: 32

約数和(自身を含む): 30159360

約数和(自身を除く): 10047099

約数列:

[1, 3, 13, 39, 43, 67, 129, 179, 201, 537, 559, 871, 1677, 2327, 2613, 2881, 6981, 7697, 8643, 11993, 23091, 35979, 37453, 100061, 112359, 155909, 300183, 467727, 515699, 1547097, 6704087, 20112261]

約数ペア:

[(1, 20112261), (3, 6704087), (13, 1547097), (39, 515699), (43, 467727), (67, 300183), (129, 155909), (179, 112359), (201, 100061), (537, 37453), (559, 35979), (871, 23091), (1677, 11993), (2327, 8643), (2613, 7697), (2881, 6981)]