21981024

素因数分解:

$2^5\times 3^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1$

素因数の和:154

約数の個数: 192

約数和(自身を含む): 73382400

約数和(自身を除く): 51401376

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 19, 24, 26, 27, 32, 36, 38, 39, 48, 52, 54, 57, 72, 76, 78, 96, 103, 104, 108, 114, 117, 144, 152, 156, 171, 206, 208, 216, 228, 234, 247, 288, 304, 309, 312, 342, 351, 412, 416, 432, 456, 468, 494, 513, 608, 618, 624, 684, 702, 741, 824, 864, 912, 927, 936, 988, 1026, 1236, 1248, 1339, 1368, 1404, 1482, 1648, 1824, 1854, 1872, 1957, 1976, 2052, 2223, 2472, 2678, 2736, 2781, 2808, 2964, 3296, 3708, 3744, 3914, 3952, 4017, 4104, 4446, 4944, 5356, 5472, 5562, 5616, 5871, 5928, 6669, 7416, 7828, 7904, 8034, 8208, 8892, 9888, 10712, 11124, 11232, 11742, 11856, 12051, 13338, 14832, 15656, 16068, 16416, 17613, 17784, 21424, 22248, 23484, 23712, 24102, 25441, 26676, 29664, 31312, 32136, 35226, 35568, 36153, 42848, 44496, 46968, 48204, 50882, 52839, 53352, 62624, 64272, 70452, 71136, 72306, 76323, 88992, 93936, 96408, 101764, 105678, 106704, 128544, 140904, 144612, 152646, 187872, 192816, 203528, 211356, 213408, 228969, 281808, 289224, 305292, 385632, 407056, 422712, 457938, 563616, 578448, 610584, 686907, 814112, 845424, 915876, 1156896, 1221168, 1373814, 1690848, 1831752, 2442336, 2747628, 3663504, 5495256, 7327008, 10990512, 21981024]

約数ペア:

[(1, 21981024), (2, 10990512), (3, 7327008), (4, 5495256), (6, 3663504), (8, 2747628), (9, 2442336), (12, 1831752), (13, 1690848), (16, 1373814), (18, 1221168), (19, 1156896), (24, 915876), (26, 845424), (27, 814112), (32, 686907), (36, 610584), (38, 578448), (39, 563616), (48, 457938), (52, 422712), (54, 407056), (57, 385632), (72, 305292), (76, 289224), (78, 281808), (96, 228969), (103, 213408), (104, 211356), (108, 203528), (114, 192816), (117, 187872), (144, 152646), (152, 144612), (156, 140904), (171, 128544), (206, 106704), (208, 105678), (216, 101764), (228, 96408), (234, 93936), (247, 88992), (288, 76323), (304, 72306), (309, 71136), (312, 70452), (342, 64272), (351, 62624), (412, 53352), (416, 52839), (432, 50882), (456, 48204), (468, 46968), (494, 44496), (513, 42848), (608, 36153), (618, 35568), (624, 35226), (684, 32136), (702, 31312), (741, 29664), (824, 26676), (864, 25441), (912, 24102), (927, 23712), (936, 23484), (988, 22248), (1026, 21424), (1236, 17784), (1248, 17613), (1339, 16416), (1368, 16068), (1404, 15656), (1482, 14832), (1648, 13338), (1824, 12051), (1854, 11856), (1872, 11742), (1957, 11232), (1976, 11124), (2052, 10712), (2223, 9888), (2472, 8892), (2678, 8208), (2736, 8034), (2781, 7904), (2808, 7828), (2964, 7416), (3296, 6669), (3708, 5928), (3744, 5871), (3914, 5616), (3952, 5562), (4017, 5472), (4104, 5356), (4446, 4944)]