21239856

素因数分解:

$2^4\times 3^2\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{53}}^1$

素因数の和:112

約数の個数: 180

約数和(自身を含む): 69464304

約数和(自身を除く): 48224448

約数列:

[1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 23, 24, 33, 36, 44, 46, 48, 53, 66, 69, 72, 88, 92, 99, 106, 121, 132, 138, 144, 159, 176, 184, 198, 207, 212, 242, 253, 264, 276, 318, 363, 368, 396, 414, 424, 477, 484, 506, 528, 552, 583, 636, 726, 759, 792, 828, 848, 954, 968, 1012, 1089, 1104, 1166, 1219, 1272, 1452, 1518, 1584, 1656, 1749, 1908, 1936, 2024, 2178, 2277, 2332, 2438, 2544, 2783, 2904, 3036, 3312, 3498, 3657, 3816, 4048, 4356, 4554, 4664, 4876, 5247, 5566, 5808, 6072, 6413, 6996, 7314, 7632, 8349, 8712, 9108, 9328, 9752, 10494, 10971, 11132, 12144, 12826, 13409, 13992, 14628, 16698, 17424, 18216, 19239, 19504, 20988, 21942, 22264, 25047, 25652, 26818, 27984, 29256, 33396, 36432, 38478, 40227, 41976, 43884, 44528, 50094, 51304, 53636, 57717, 58512, 66792, 76956, 80454, 83952, 87768, 100188, 102608, 107272, 115434, 120681, 133584, 147499, 153912, 160908, 175536, 200376, 214544, 230868, 241362, 294998, 307824, 321816, 400752, 442497, 461736, 482724, 589996, 643632, 884994, 923472, 965448, 1179992, 1327491, 1769988, 1930896, 2359984, 2654982, 3539976, 5309964, 7079952, 10619928, 21239856]

約数ペア:

[(1, 21239856), (2, 10619928), (3, 7079952), (4, 5309964), (6, 3539976), (8, 2654982), (9, 2359984), (11, 1930896), (12, 1769988), (16, 1327491), (18, 1179992), (22, 965448), (23, 923472), (24, 884994), (33, 643632), (36, 589996), (44, 482724), (46, 461736), (48, 442497), (53, 400752), (66, 321816), (69, 307824), (72, 294998), (88, 241362), (92, 230868), (99, 214544), (106, 200376), (121, 175536), (132, 160908), (138, 153912), (144, 147499), (159, 133584), (176, 120681), (184, 115434), (198, 107272), (207, 102608), (212, 100188), (242, 87768), (253, 83952), (264, 80454), (276, 76956), (318, 66792), (363, 58512), (368, 57717), (396, 53636), (414, 51304), (424, 50094), (477, 44528), (484, 43884), (506, 41976), (528, 40227), (552, 38478), (583, 36432), (636, 33396), (726, 29256), (759, 27984), (792, 26818), (828, 25652), (848, 25047), (954, 22264), (968, 21942), (1012, 20988), (1089, 19504), (1104, 19239), (1166, 18216), (1219, 17424), (1272, 16698), (1452, 14628), (1518, 13992), (1584, 13409), (1656, 12826), (1749, 12144), (1908, 11132), (1936, 10971), (2024, 10494), (2178, 9752), (2277, 9328), (2332, 9108), (2438, 8712), (2544, 8349), (2783, 7632), (2904, 7314), (3036, 6996), (3312, 6413), (3498, 6072), (3657, 5808), (3816, 5566), (4048, 5247), (4356, 4876), (4554, 4664)]