20121385149

素因数分解:

$3^3\times {\mathrm{19}}^2\times {\mathrm{73}}^1\times {\mathrm{28279}}^1$

素因数の和:28399

約数の個数: 48

約数和(自身を含む): 31893052800

約数和(自身を除く): 11771667651

約数列:

[1, 3, 9, 19, 27, 57, 73, 171, 219, 361, 513, 657, 1083, 1387, 1971, 3249, 4161, 9747, 12483, 26353, 28279, 37449, 79059, 84837, 237177, 254511, 537301, 711531, 763533, 1611903, 2064367, 4835709, 6193101, 10208719, 14507127, 18579303, 30626157, 39222973, 55737909, 91878471, 117668919, 275635413, 353006757, 745236487, 1059020271, 2235709461, 6707128383, 20121385149]

約数ペア:

[(1, 20121385149), (3, 6707128383), (9, 2235709461), (19, 1059020271), (27, 745236487), (57, 353006757), (73, 275635413), (171, 117668919), (219, 91878471), (361, 55737909), (513, 39222973), (657, 30626157), (1083, 18579303), (1387, 14507127), (1971, 10208719), (3249, 6193101), (4161, 4835709), (9747, 2064367), (12483, 1611903), (26353, 763533), (28279, 711531), (37449, 537301), (79059, 254511), (84837, 237177)]