18667766

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1$

素因数の和:141

約数の個数: 64

約数和(自身を含む): 34836480

約数和(自身を除く): 16168714

約数列:

[1, 2, 13, 19, 23, 26, 31, 38, 46, 53, 62, 106, 247, 299, 403, 437, 494, 589, 598, 689, 713, 806, 874, 1007, 1178, 1219, 1378, 1426, 1643, 2014, 2438, 3286, 5681, 7657, 9269, 11362, 13091, 13547, 15314, 15847, 18538, 21359, 23161, 26182, 27094, 31217, 31694, 37789, 42718, 46322, 62434, 75578, 176111, 301093, 352222, 405821, 491257, 602186, 717991, 811642, 982514, 1435982, 9333883, 18667766]

約数ペア:

[(1, 18667766), (2, 9333883), (13, 1435982), (19, 982514), (23, 811642), (26, 717991), (31, 602186), (38, 491257), (46, 405821), (53, 352222), (62, 301093), (106, 176111), (247, 75578), (299, 62434), (403, 46322), (437, 42718), (494, 37789), (589, 31694), (598, 31217), (689, 27094), (713, 26182), (806, 23161), (874, 21359), (1007, 18538), (1178, 15847), (1219, 15314), (1378, 13547), (1426, 13091), (1643, 11362), (2014, 9269), (2438, 7657), (3286, 5681)]