19715784

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{191}}^1$

素因数の和:251

約数の個数: 128

約数和(自身を含む): 59719680

約数和(自身を除く): 40003896

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 17, 22, 23, 24, 33, 34, 44, 46, 51, 66, 68, 69, 88, 92, 102, 132, 136, 138, 184, 187, 191, 204, 253, 264, 276, 374, 382, 391, 408, 506, 552, 561, 573, 748, 759, 764, 782, 1012, 1122, 1146, 1173, 1496, 1518, 1528, 1564, 2024, 2101, 2244, 2292, 2346, 3036, 3128, 3247, 4202, 4301, 4393, 4488, 4584, 4692, 6072, 6303, 6494, 8404, 8602, 8786, 9384, 9741, 12606, 12903, 12988, 13179, 16808, 17204, 17572, 19482, 25212, 25806, 25976, 26358, 34408, 35144, 35717, 38964, 48323, 50424, 51612, 52716, 71434, 74681, 77928, 96646, 103224, 105432, 107151, 142868, 144969, 149362, 193292, 214302, 224043, 285736, 289938, 298724, 386584, 428604, 448086, 579876, 597448, 821491, 857208, 896172, 1159752, 1642982, 1792344, 2464473, 3285964, 4928946, 6571928, 9857892, 19715784]

約数ペア:

[(1, 19715784), (2, 9857892), (3, 6571928), (4, 4928946), (6, 3285964), (8, 2464473), (11, 1792344), (12, 1642982), (17, 1159752), (22, 896172), (23, 857208), (24, 821491), (33, 597448), (34, 579876), (44, 448086), (46, 428604), (51, 386584), (66, 298724), (68, 289938), (69, 285736), (88, 224043), (92, 214302), (102, 193292), (132, 149362), (136, 144969), (138, 142868), (184, 107151), (187, 105432), (191, 103224), (204, 96646), (253, 77928), (264, 74681), (276, 71434), (374, 52716), (382, 51612), (391, 50424), (408, 48323), (506, 38964), (552, 35717), (561, 35144), (573, 34408), (748, 26358), (759, 25976), (764, 25806), (782, 25212), (1012, 19482), (1122, 17572), (1146, 17204), (1173, 16808), (1496, 13179), (1518, 12988), (1528, 12903), (1564, 12606), (2024, 9741), (2101, 9384), (2244, 8786), (2292, 8602), (2346, 8404), (3036, 6494), (3128, 6303), (3247, 6072), (4202, 4692), (4301, 4584), (4393, 4488)]