263278041

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{5303}}^1$

素因数の和:5405

約数の個数: 32

約数和(自身を含む): 403952640

約数和(自身を除く): 140674599

約数列:

[1, 3, 13, 19, 39, 57, 67, 201, 247, 741, 871, 1273, 2613, 3819, 5303, 15909, 16549, 49647, 68939, 100757, 206817, 302271, 355301, 1065903, 1309841, 3929523, 4618913, 6750719, 13856739, 20252157, 87759347, 263278041]

約数ペア:

[(1, 263278041), (3, 87759347), (13, 20252157), (19, 13856739), (39, 6750719), (57, 4618913), (67, 3929523), (201, 1309841), (247, 1065903), (741, 355301), (871, 302271), (1273, 206817), (2613, 100757), (3819, 68939), (5303, 49647), (15909, 16549)]