21264048

素因数分解:

$2^4\times 3^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{307}}^1$

素因数の和:371

約数の個数: 120

約数和(自身を含む): 66033968

約数和(自身を除く): 44769920

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 36, 37, 39, 48, 52, 72, 74, 78, 104, 111, 117, 144, 148, 156, 208, 222, 234, 296, 307, 312, 333, 444, 468, 481, 592, 614, 624, 666, 888, 921, 936, 962, 1228, 1332, 1443, 1776, 1842, 1872, 1924, 2456, 2664, 2763, 2886, 3684, 3848, 3991, 4329, 4912, 5328, 5526, 5772, 7368, 7696, 7982, 8658, 11052, 11359, 11544, 11973, 14736, 15964, 17316, 22104, 22718, 23088, 23946, 31928, 34077, 34632, 35919, 44208, 45436, 47892, 63856, 68154, 69264, 71838, 90872, 95784, 102231, 136308, 143676, 147667, 181744, 191568, 204462, 272616, 287352, 295334, 408924, 443001, 545232, 574704, 590668, 817848, 886002, 1181336, 1329003, 1635696, 1772004, 2362672, 2658006, 3544008, 5316012, 7088016, 10632024, 21264048]

約数ペア:

[(1, 21264048), (2, 10632024), (3, 7088016), (4, 5316012), (6, 3544008), (8, 2658006), (9, 2362672), (12, 1772004), (13, 1635696), (16, 1329003), (18, 1181336), (24, 886002), (26, 817848), (36, 590668), (37, 574704), (39, 545232), (48, 443001), (52, 408924), (72, 295334), (74, 287352), (78, 272616), (104, 204462), (111, 191568), (117, 181744), (144, 147667), (148, 143676), (156, 136308), (208, 102231), (222, 95784), (234, 90872), (296, 71838), (307, 69264), (312, 68154), (333, 63856), (444, 47892), (468, 45436), (481, 44208), (592, 35919), (614, 34632), (624, 34077), (666, 31928), (888, 23946), (921, 23088), (936, 22718), (962, 22104), (1228, 17316), (1332, 15964), (1443, 14736), (1776, 11973), (1842, 11544), (1872, 11359), (1924, 11052), (2456, 8658), (2664, 7982), (2763, 7696), (2886, 7368), (3684, 5772), (3848, 5526), (3991, 5328), (4329, 4912)]