47728779

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1$

素因数の和:180

約数の個数: 64

約数和(自身を含む): 81423360

約数和(自身を除く): 33694581

約数列:

[1, 3, 7, 19, 21, 37, 53, 57, 61, 111, 133, 159, 183, 259, 371, 399, 427, 703, 777, 1007, 1113, 1159, 1281, 1961, 2109, 2257, 3021, 3233, 3477, 4921, 5883, 6771, 7049, 8113, 9699, 13727, 14763, 15799, 21147, 22631, 24339, 37259, 41181, 42883, 47397, 61427, 67893, 111777, 119621, 128649, 184281, 260813, 300181, 358863, 429989, 782439, 837347, 900543, 1289967, 2272799, 2512041, 6818397, 15909593, 47728779]

約数ペア:

[(1, 47728779), (3, 15909593), (7, 6818397), (19, 2512041), (21, 2272799), (37, 1289967), (53, 900543), (57, 837347), (61, 782439), (111, 429989), (133, 358863), (159, 300181), (183, 260813), (259, 184281), (371, 128649), (399, 119621), (427, 111777), (703, 67893), (777, 61427), (1007, 47397), (1113, 42883), (1159, 41181), (1281, 37259), (1961, 24339), (2109, 22631), (2257, 21147), (3021, 15799), (3233, 14763), (3477, 13727), (4921, 9699), (5883, 8113), (6771, 7049)]