31989334

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:173

約数の個数: 48

約数和(自身を含む): 55655424

約数和(自身を除く): 23666090

約数列:

[1, 2, 13, 26, 31, 43, 62, 71, 86, 142, 169, 338, 403, 559, 806, 923, 1118, 1333, 1846, 2201, 2666, 3053, 4402, 5239, 6106, 7267, 10478, 11999, 14534, 17329, 23998, 28613, 34658, 39689, 57226, 79378, 94643, 189286, 225277, 371969, 450554, 515957, 743938, 1031914, 1230359, 2460718, 15994667, 31989334]

約数ペア:

[(1, 31989334), (2, 15994667), (13, 2460718), (26, 1230359), (31, 1031914), (43, 743938), (62, 515957), (71, 450554), (86, 371969), (142, 225277), (169, 189286), (338, 94643), (403, 79378), (559, 57226), (806, 39689), (923, 34658), (1118, 28613), (1333, 23998), (1846, 17329), (2201, 14534), (2666, 11999), (3053, 10478), (4402, 7267), (5239, 6106)]