21812904

素因数分解:

$2^3\times 3^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{251}}^1$

素因数の和:351

約数の個数: 96

約数和(自身を含む): 63685440

約数和(自身を除く): 41872536

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 17, 18, 24, 34, 36, 51, 68, 71, 72, 102, 136, 142, 153, 204, 213, 251, 284, 306, 408, 426, 502, 568, 612, 639, 753, 852, 1004, 1207, 1224, 1278, 1506, 1704, 2008, 2259, 2414, 2556, 3012, 3621, 4267, 4518, 4828, 5112, 6024, 7242, 8534, 9036, 9656, 10863, 12801, 14484, 17068, 17821, 18072, 21726, 25602, 28968, 34136, 35642, 38403, 43452, 51204, 53463, 71284, 76806, 86904, 102408, 106926, 142568, 153612, 160389, 213852, 302957, 307224, 320778, 427704, 605914, 641556, 908871, 1211828, 1283112, 1817742, 2423656, 2726613, 3635484, 5453226, 7270968, 10906452, 21812904]

約数ペア:

[(1, 21812904), (2, 10906452), (3, 7270968), (4, 5453226), (6, 3635484), (8, 2726613), (9, 2423656), (12, 1817742), (17, 1283112), (18, 1211828), (24, 908871), (34, 641556), (36, 605914), (51, 427704), (68, 320778), (71, 307224), (72, 302957), (102, 213852), (136, 160389), (142, 153612), (153, 142568), (204, 106926), (213, 102408), (251, 86904), (284, 76806), (306, 71284), (408, 53463), (426, 51204), (502, 43452), (568, 38403), (612, 35642), (639, 34136), (753, 28968), (852, 25602), (1004, 21726), (1207, 18072), (1224, 17821), (1278, 17068), (1506, 14484), (1704, 12801), (2008, 10863), (2259, 9656), (2414, 9036), (2556, 8534), (3012, 7242), (3621, 6024), (4267, 5112), (4518, 4828)]