19773208

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{157}}^1\times {\mathrm{173}}^1$

素因数の和:356

約数の個数: 64

約数和(自身を含む): 46186560

約数和(自身を除く): 26413352

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 157, 173, 182, 314, 346, 364, 628, 692, 728, 1099, 1211, 1256, 1384, 2041, 2198, 2249, 2422, 4082, 4396, 4498, 4844, 8164, 8792, 8996, 9688, 14287, 15743, 16328, 17992, 27161, 28574, 31486, 54322, 57148, 62972, 108644, 114296, 125944, 190127, 217288, 353093, 380254, 706186, 760508, 1412372, 1521016, 2471651, 2824744, 4943302, 9886604, 19773208]

約数ペア:

[(1, 19773208), (2, 9886604), (4, 4943302), (7, 2824744), (8, 2471651), (13, 1521016), (14, 1412372), (26, 760508), (28, 706186), (52, 380254), (56, 353093), (91, 217288), (104, 190127), (157, 125944), (173, 114296), (182, 108644), (314, 62972), (346, 57148), (364, 54322), (628, 31486), (692, 28574), (728, 27161), (1099, 17992), (1211, 16328), (1256, 15743), (1384, 14287), (2041, 9688), (2198, 8996), (2249, 8792), (2422, 8164), (4082, 4844), (4396, 4498)]