16978808

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{641}}^1$

素因数の和:708

約数の個数: 64

約数和(自身を含む): 40677120

約数和(自身を除く): 23698312

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 43, 44, 56, 77, 86, 88, 154, 172, 301, 308, 344, 473, 602, 616, 641, 946, 1204, 1282, 1892, 2408, 2564, 3311, 3784, 4487, 5128, 6622, 7051, 8974, 13244, 14102, 17948, 26488, 27563, 28204, 35896, 49357, 55126, 56408, 98714, 110252, 192941, 197428, 220504, 303193, 385882, 394856, 606386, 771764, 1212772, 1543528, 2122351, 2425544, 4244702, 8489404, 16978808]

約数ペア:

[(1, 16978808), (2, 8489404), (4, 4244702), (7, 2425544), (8, 2122351), (11, 1543528), (14, 1212772), (22, 771764), (28, 606386), (43, 394856), (44, 385882), (56, 303193), (77, 220504), (86, 197428), (88, 192941), (154, 110252), (172, 98714), (301, 56408), (308, 55126), (344, 49357), (473, 35896), (602, 28204), (616, 27563), (641, 26488), (946, 17948), (1204, 14102), (1282, 13244), (1892, 8974), (2408, 7051), (2564, 6622), (3311, 5128), (3784, 4487)]