19964672

素因数分解:

$2^8\times 7^1\times {\mathrm{13}}^1\times {\mathrm{857}}^1$

素因数の和:893

約数の個数: 72

約数和(自身を含む): 49105056

約数和(自身を除く): 29140384

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 56, 64, 91, 104, 112, 128, 182, 208, 224, 256, 364, 416, 448, 728, 832, 857, 896, 1456, 1664, 1714, 1792, 2912, 3328, 3428, 5824, 5999, 6856, 11141, 11648, 11998, 13712, 22282, 23296, 23996, 27424, 44564, 47992, 54848, 77987, 89128, 95984, 109696, 155974, 178256, 191968, 219392, 311948, 356512, 383936, 623896, 713024, 767872, 1247792, 1426048, 1535744, 2495584, 2852096, 4991168, 9982336, 19964672]

約数ペア:

[(1, 19964672), (2, 9982336), (4, 4991168), (7, 2852096), (8, 2495584), (13, 1535744), (14, 1426048), (16, 1247792), (26, 767872), (28, 713024), (32, 623896), (52, 383936), (56, 356512), (64, 311948), (91, 219392), (104, 191968), (112, 178256), (128, 155974), (182, 109696), (208, 95984), (224, 89128), (256, 77987), (364, 54848), (416, 47992), (448, 44564), (728, 27424), (832, 23996), (857, 23296), (896, 22282), (1456, 13712), (1664, 11998), (1714, 11648), (1792, 11141), (2912, 6856), (3328, 5999), (3428, 5824)]