21645426

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{263}}^1$

素因数の和:351

約数の個数: 64

約数和(自身を含む): 50181120

約数和(自身を除く): 28535694

約数列:

[1, 2, 3, 6, 11, 22, 29, 33, 43, 58, 66, 86, 87, 129, 174, 258, 263, 319, 473, 526, 638, 789, 946, 957, 1247, 1419, 1578, 1914, 2494, 2838, 2893, 3741, 5786, 7482, 7627, 8679, 11309, 13717, 15254, 17358, 22618, 22881, 27434, 33927, 41151, 45762, 67854, 82302, 83897, 124399, 167794, 248798, 251691, 327961, 373197, 503382, 655922, 746394, 983883, 1967766, 3607571, 7215142, 10822713, 21645426]

約数ペア:

[(1, 21645426), (2, 10822713), (3, 7215142), (6, 3607571), (11, 1967766), (22, 983883), (29, 746394), (33, 655922), (43, 503382), (58, 373197), (66, 327961), (86, 251691), (87, 248798), (129, 167794), (174, 124399), (258, 83897), (263, 82302), (319, 67854), (473, 45762), (526, 41151), (638, 33927), (789, 27434), (946, 22881), (957, 22618), (1247, 17358), (1419, 15254), (1578, 13717), (1914, 11309), (2494, 8679), (2838, 7627), (2893, 7482), (3741, 5786)]