21130472

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{83}}^1\times {\mathrm{263}}^1$

素因数の和:374

約数の個数: 48

約数和(自身を含む): 44241120

約数和(自身を除く): 23110648

約数列:

[1, 2, 4, 8, 11, 22, 44, 83, 88, 121, 166, 242, 263, 332, 484, 526, 664, 913, 968, 1052, 1826, 2104, 2893, 3652, 5786, 7304, 10043, 11572, 20086, 21829, 23144, 31823, 40172, 43658, 63646, 80344, 87316, 127292, 174632, 240119, 254584, 480238, 960476, 1920952, 2641309, 5282618, 10565236, 21130472]

約数ペア:

[(1, 21130472), (2, 10565236), (4, 5282618), (8, 2641309), (11, 1920952), (22, 960476), (44, 480238), (83, 254584), (88, 240119), (121, 174632), (166, 127292), (242, 87316), (263, 80344), (332, 63646), (484, 43658), (526, 40172), (664, 31823), (913, 23144), (968, 21829), (1052, 20086), (1826, 11572), (2104, 10043), (2893, 7304), (3652, 5786)]