254929213

素因数分解:

$7^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1$

素因数の和:159

約数の個数: 72

約数和(自身を含む): 359036160

約数和(自身を除く): 104106947

約数列:

[1, 7, 11, 19, 31, 49, 73, 77, 121, 133, 209, 217, 341, 511, 539, 589, 803, 847, 931, 1387, 1463, 1519, 2263, 2299, 2387, 3577, 3751, 4123, 5621, 5929, 6479, 8833, 9709, 10241, 15257, 15841, 16093, 16709, 24893, 26257, 28861, 39347, 42997, 45353, 61831, 67963, 71269, 106799, 110887, 112651, 167827, 174251, 183799, 273823, 300979, 317471, 432817, 472967, 498883, 747593, 1174789, 1219757, 1916761, 2106853, 3310769, 3492181, 5202637, 8223523, 13417327, 23175383, 36418459, 254929213]

約数ペア:

[(1, 254929213), (7, 36418459), (11, 23175383), (19, 13417327), (31, 8223523), (49, 5202637), (73, 3492181), (77, 3310769), (121, 2106853), (133, 1916761), (209, 1219757), (217, 1174789), (341, 747593), (511, 498883), (539, 472967), (589, 432817), (803, 317471), (847, 300979), (931, 273823), (1387, 183799), (1463, 174251), (1519, 167827), (2263, 112651), (2299, 110887), (2387, 106799), (3577, 71269), (3751, 67963), (4123, 61831), (5621, 45353), (5929, 42997), (6479, 39347), (8833, 28861), (9709, 26257), (10241, 24893), (15257, 16709), (15841, 16093)]