21513168

素因数分解:

$2^4\times 3^3\times {\mathrm{19}}^1\times {\mathrm{2621}}^1$

素因数の和:2657

約数の個数: 80

約数和(自身を含む): 65025600

約数和(自身を除く): 43512432

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 27, 36, 38, 48, 54, 57, 72, 76, 108, 114, 144, 152, 171, 216, 228, 304, 342, 432, 456, 513, 684, 912, 1026, 1368, 2052, 2621, 2736, 4104, 5242, 7863, 8208, 10484, 15726, 20968, 23589, 31452, 41936, 47178, 49799, 62904, 70767, 94356, 99598, 125808, 141534, 149397, 188712, 199196, 283068, 298794, 377424, 398392, 448191, 566136, 597588, 796784, 896382, 1132272, 1195176, 1344573, 1792764, 2390352, 2689146, 3585528, 5378292, 7171056, 10756584, 21513168]

約数ペア:

[(1, 21513168), (2, 10756584), (3, 7171056), (4, 5378292), (6, 3585528), (8, 2689146), (9, 2390352), (12, 1792764), (16, 1344573), (18, 1195176), (19, 1132272), (24, 896382), (27, 796784), (36, 597588), (38, 566136), (48, 448191), (54, 398392), (57, 377424), (72, 298794), (76, 283068), (108, 199196), (114, 188712), (144, 149397), (152, 141534), (171, 125808), (216, 99598), (228, 94356), (304, 70767), (342, 62904), (432, 49799), (456, 47178), (513, 41936), (684, 31452), (912, 23589), (1026, 20968), (1368, 15726), (2052, 10484), (2621, 8208), (2736, 7863), (4104, 5242)]