12919952

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{211}}^1$

素因数の和:351

約数の個数: 40

約数和(自身を含む): 26025120

約数和(自身を除く): 13105168

約数列:

[1, 2, 4, 8, 16, 43, 86, 89, 172, 178, 211, 344, 356, 422, 688, 712, 844, 1424, 1688, 3376, 3827, 7654, 9073, 15308, 18146, 18779, 30616, 36292, 37558, 61232, 72584, 75116, 145168, 150232, 300464, 807497, 1614994, 3229988, 6459976, 12919952]

約数ペア:

[(1, 12919952), (2, 6459976), (4, 3229988), (8, 1614994), (16, 807497), (43, 300464), (86, 150232), (89, 145168), (172, 75116), (178, 72584), (211, 61232), (344, 37558), (356, 36292), (422, 30616), (688, 18779), (712, 18146), (844, 15308), (1424, 9073), (1688, 7654), (3376, 3827)]