16648668

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{431}}^1$

素因数の和:507

約数の個数: 72

約数和(自身を含む): 44815680

約数和(自身を除く): 28167012

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 37, 58, 74, 87, 111, 116, 148, 174, 222, 261, 333, 348, 431, 444, 522, 666, 862, 1044, 1073, 1293, 1332, 1724, 2146, 2586, 3219, 3879, 4292, 5172, 6438, 7758, 9657, 12499, 12876, 15516, 15947, 19314, 24998, 31894, 37497, 38628, 47841, 49996, 63788, 74994, 95682, 112491, 143523, 149988, 191364, 224982, 287046, 449964, 462463, 574092, 924926, 1387389, 1849852, 2774778, 4162167, 5549556, 8324334, 16648668]

約数ペア:

[(1, 16648668), (2, 8324334), (3, 5549556), (4, 4162167), (6, 2774778), (9, 1849852), (12, 1387389), (18, 924926), (29, 574092), (36, 462463), (37, 449964), (58, 287046), (74, 224982), (87, 191364), (111, 149988), (116, 143523), (148, 112491), (174, 95682), (222, 74994), (261, 63788), (333, 49996), (348, 47841), (431, 38628), (444, 37497), (522, 31894), (666, 24998), (862, 19314), (1044, 15947), (1073, 15516), (1293, 12876), (1332, 12499), (1724, 9657), (2146, 7758), (2586, 6438), (3219, 5172), (3879, 4292)]