138977181

素因数分解:

$3^3\times 7^2\times {\mathrm{73}}^1\times {\mathrm{1439}}^1$

素因数の和:1535

約数の個数: 48

約数和(自身を含む): 242956800

約数和(自身を除く): 103979619

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 73, 147, 189, 219, 441, 511, 657, 1323, 1439, 1533, 1971, 3577, 4317, 4599, 10073, 10731, 12951, 13797, 30219, 32193, 38853, 70511, 90657, 96579, 105047, 211533, 271971, 315141, 634599, 735329, 945423, 1903797, 2205987, 2836269, 5147303, 6617961, 15441909, 19853883, 46325727, 138977181]

約数ペア:

[(1, 138977181), (3, 46325727), (7, 19853883), (9, 15441909), (21, 6617961), (27, 5147303), (49, 2836269), (63, 2205987), (73, 1903797), (147, 945423), (189, 735329), (219, 634599), (441, 315141), (511, 271971), (657, 211533), (1323, 105047), (1439, 96579), (1533, 90657), (1971, 70511), (3577, 38853), (4317, 32193), (4599, 30219), (10073, 13797), (10731, 12951)]