81358277

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{683}}^1$

素因数の和:738

約数の個数: 48

約数和(自身を含む): 117899712

約数和(自身を除く): 36541435

約数列:

[1, 7, 11, 13, 17, 49, 77, 91, 119, 143, 187, 221, 539, 637, 683, 833, 1001, 1309, 1547, 2431, 4781, 7007, 7513, 8879, 9163, 10829, 11611, 17017, 33467, 52591, 62153, 81277, 97669, 119119, 127721, 150943, 368137, 435071, 568939, 683683, 894047, 1056601, 1660373, 4785781, 6258329, 7396207, 11622611, 81358277]

約数ペア:

[(1, 81358277), (7, 11622611), (11, 7396207), (13, 6258329), (17, 4785781), (49, 1660373), (77, 1056601), (91, 894047), (119, 683683), (143, 568939), (187, 435071), (221, 368137), (539, 150943), (637, 127721), (683, 119119), (833, 97669), (1001, 81277), (1309, 62153), (1547, 52591), (2431, 33467), (4781, 17017), (7007, 11611), (7513, 10829), (8879, 9163)]