21716376

素因数分解:

$2^3\times 3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1913}}^1$

素因数の和:1976

約数の個数: 64

約数和(自身を含む): 60635520

約数和(自身を除く): 38919144

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 22, 24, 33, 43, 44, 66, 86, 88, 129, 132, 172, 258, 264, 344, 473, 516, 946, 1032, 1419, 1892, 1913, 2838, 3784, 3826, 5676, 5739, 7652, 11352, 11478, 15304, 21043, 22956, 42086, 45912, 63129, 82259, 84172, 126258, 164518, 168344, 246777, 252516, 329036, 493554, 505032, 658072, 904849, 987108, 1809698, 1974216, 2714547, 3619396, 5429094, 7238792, 10858188, 21716376]

約数ペア:

[(1, 21716376), (2, 10858188), (3, 7238792), (4, 5429094), (6, 3619396), (8, 2714547), (11, 1974216), (12, 1809698), (22, 987108), (24, 904849), (33, 658072), (43, 505032), (44, 493554), (66, 329036), (86, 252516), (88, 246777), (129, 168344), (132, 164518), (172, 126258), (258, 84172), (264, 82259), (344, 63129), (473, 45912), (516, 42086), (946, 22956), (1032, 21043), (1419, 15304), (1892, 11478), (1913, 11352), (2838, 7652), (3784, 5739), (3826, 5676)]