15679640781

素因数分解:

$3^2\times 7^2\times {\mathrm{71}}^1\times {\mathrm{619}}^1\times {\mathrm{809}}^1$

素因数の和:1519

約数の個数: 72

約数和(自身を含む): 26793374400

約数和(自身を除く): 11113733619

約数列:

[1, 3, 7, 9, 21, 49, 63, 71, 147, 213, 441, 497, 619, 639, 809, 1491, 1857, 2427, 3479, 4333, 4473, 5571, 5663, 7281, 10437, 12999, 16989, 30331, 31311, 38997, 39641, 43949, 50967, 57439, 90993, 118923, 131847, 172317, 272979, 307643, 356769, 395541, 402073, 500771, 516951, 922929, 1206219, 1502313, 2153501, 2768787, 2814511, 3505397, 3618657, 4506939, 6460503, 8443533, 10516191, 19381509, 24537779, 25330599, 31548573, 35554741, 73613337, 106664223, 220840011, 248883187, 319992669, 746649561, 1742182309, 2239948683, 5226546927, 15679640781]

約数ペア:

[(1, 15679640781), (3, 5226546927), (7, 2239948683), (9, 1742182309), (21, 746649561), (49, 319992669), (63, 248883187), (71, 220840011), (147, 106664223), (213, 73613337), (441, 35554741), (497, 31548573), (619, 25330599), (639, 24537779), (809, 19381509), (1491, 10516191), (1857, 8443533), (2427, 6460503), (3479, 4506939), (4333, 3618657), (4473, 3505397), (5571, 2814511), (5663, 2768787), (7281, 2153501), (10437, 1502313), (12999, 1206219), (16989, 922929), (30331, 516951), (31311, 500771), (38997, 402073), (39641, 395541), (43949, 356769), (50967, 307643), (57439, 272979), (90993, 172317), (118923, 131847)]