18966784

素因数分解:

$2^8\times {\mathrm{43}}^1\times {\mathrm{1723}}^1$

素因数の和:1782

約数の個数: 36

約数和(自身を含む): 38762416

約数和(自身を除く): 19795632

約数列:

[1, 2, 4, 8, 16, 32, 43, 64, 86, 128, 172, 256, 344, 688, 1376, 1723, 2752, 3446, 5504, 6892, 11008, 13784, 27568, 55136, 74089, 110272, 148178, 220544, 296356, 441088, 592712, 1185424, 2370848, 4741696, 9483392, 18966784]

約数ペア:

[(1, 18966784), (2, 9483392), (4, 4741696), (8, 2370848), (16, 1185424), (32, 592712), (43, 441088), (64, 296356), (86, 220544), (128, 148178), (172, 110272), (256, 74089), (344, 55136), (688, 27568), (1376, 13784), (1723, 11008), (2752, 6892), (3446, 5504)]