21407946

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{193}}^1$

素因数の和:363

約数の個数: 64

約数和(自身を含む): 52147200

約数和(自身を除く): 30739254

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 38, 42, 57, 114, 133, 139, 193, 266, 278, 386, 399, 417, 579, 798, 834, 973, 1158, 1351, 1946, 2641, 2702, 2919, 3667, 4053, 5282, 5838, 7334, 7923, 8106, 11001, 15846, 18487, 22002, 25669, 26827, 36974, 51338, 53654, 55461, 77007, 80481, 110922, 154014, 160962, 187789, 375578, 509713, 563367, 1019426, 1126734, 1529139, 3058278, 3567991, 7135982, 10703973, 21407946]

約数ペア:

[(1, 21407946), (2, 10703973), (3, 7135982), (6, 3567991), (7, 3058278), (14, 1529139), (19, 1126734), (21, 1019426), (38, 563367), (42, 509713), (57, 375578), (114, 187789), (133, 160962), (139, 154014), (193, 110922), (266, 80481), (278, 77007), (386, 55461), (399, 53654), (417, 51338), (579, 36974), (798, 26827), (834, 25669), (973, 22002), (1158, 18487), (1351, 15846), (1946, 11001), (2641, 8106), (2702, 7923), (2919, 7334), (3667, 5838), (4053, 5282)]