20853490581

素因数分解:

$3^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{25523}}^1$

素因数の和:25684

約数の個数: 80

約数和(自身を含む): 39136255488

約数和(自身を除く): 18282764907

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 81, 99, 131, 189, 231, 297, 393, 567, 693, 891, 917, 1179, 1441, 2079, 2751, 3537, 4323, 6237, 8253, 10087, 10611, 12969, 24759, 25523, 30261, 38907, 74277, 76569, 90783, 116721, 178661, 229707, 272349, 280753, 535983, 689121, 817047, 842259, 1607949, 1965271, 2067363, 2526777, 3343513, 4823847, 5895813, 7580331, 10030539, 14471541, 17687439, 22740993, 23404591, 30091617, 36778643, 53062317, 70213773, 90274851, 110335929, 159186951, 210641319, 257450501, 270824553, 331007787, 631923957, 772351503, 993023361, 1895771871, 2317054509, 2979070083, 6951163527, 20853490581]

約数ペア:

[(1, 20853490581), (3, 6951163527), (7, 2979070083), (9, 2317054509), (11, 1895771871), (21, 993023361), (27, 772351503), (33, 631923957), (63, 331007787), (77, 270824553), (81, 257450501), (99, 210641319), (131, 159186951), (189, 110335929), (231, 90274851), (297, 70213773), (393, 53062317), (567, 36778643), (693, 30091617), (891, 23404591), (917, 22740993), (1179, 17687439), (1441, 14471541), (2079, 10030539), (2751, 7580331), (3537, 5895813), (4323, 4823847), (6237, 3343513), (8253, 2526777), (10087, 2067363), (10611, 1965271), (12969, 1607949), (24759, 842259), (25523, 817047), (30261, 689121), (38907, 535983), (74277, 280753), (76569, 272349), (90783, 229707), (116721, 178661)]