21755874

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{199}}^1$

素因数の和:367

約数の個数: 64

約数和(自身を含む): 52992000

約数和(自身を除く): 31236126

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 57, 114, 133, 137, 199, 266, 274, 398, 399, 411, 597, 798, 822, 959, 1194, 1393, 1918, 2603, 2786, 2877, 3781, 4179, 5206, 5754, 7562, 7809, 8358, 11343, 15618, 18221, 22686, 26467, 27263, 36442, 52934, 54526, 54663, 79401, 81789, 109326, 158802, 163578, 190841, 381682, 517997, 572523, 1035994, 1145046, 1553991, 3107982, 3625979, 7251958, 10877937, 21755874]

約数ペア:

[(1, 21755874), (2, 10877937), (3, 7251958), (6, 3625979), (7, 3107982), (14, 1553991), (19, 1145046), (21, 1035994), (38, 572523), (42, 517997), (57, 381682), (114, 190841), (133, 163578), (137, 158802), (199, 109326), (266, 81789), (274, 79401), (398, 54663), (399, 54526), (411, 52934), (597, 36442), (798, 27263), (822, 26467), (959, 22686), (1194, 18221), (1393, 15618), (1918, 11343), (2603, 8358), (2786, 7809), (2877, 7562), (3781, 5754), (4179, 5206)]