207620721

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{2287}}^1$

素因数の和:2442

約数の個数: 48

約数和(自身を含む): 376915968

約数和(自身を除く): 169295247

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 131, 231, 393, 693, 917, 1179, 1441, 2287, 2751, 4323, 6861, 8253, 10087, 12969, 16009, 20583, 25157, 30261, 48027, 75471, 90783, 144081, 176099, 226413, 299597, 528297, 898791, 1584891, 2097179, 2696373, 3295567, 6291537, 9886701, 18874611, 23068969, 29660103, 69206907, 207620721]

約数ペア:

[(1, 207620721), (3, 69206907), (7, 29660103), (9, 23068969), (11, 18874611), (21, 9886701), (33, 6291537), (63, 3295567), (77, 2696373), (99, 2097179), (131, 1584891), (231, 898791), (393, 528297), (693, 299597), (917, 226413), (1179, 176099), (1441, 144081), (2287, 90783), (2751, 75471), (4323, 48027), (6861, 30261), (8253, 25157), (10087, 20583), (12969, 16009)]