21351627

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1$

素因数の和:153

約数の個数: 64

約数和(自身を含む): 37209600

約数和(自身を除く): 15857973

約数列:

[1, 3, 9, 11, 27, 29, 33, 37, 67, 87, 99, 111, 201, 261, 297, 319, 333, 407, 603, 737, 783, 957, 999, 1073, 1221, 1809, 1943, 2211, 2479, 2871, 3219, 3663, 5829, 6633, 7437, 8613, 9657, 10989, 11803, 17487, 19899, 21373, 22311, 27269, 28971, 35409, 52461, 64119, 66933, 71891, 81807, 106227, 192357, 215673, 245421, 318681, 577071, 647019, 736263, 790801, 1941057, 2372403, 7117209, 21351627]

約数ペア:

[(1, 21351627), (3, 7117209), (9, 2372403), (11, 1941057), (27, 790801), (29, 736263), (33, 647019), (37, 577071), (67, 318681), (87, 245421), (99, 215673), (111, 192357), (201, 106227), (261, 81807), (297, 71891), (319, 66933), (333, 64119), (407, 52461), (603, 35409), (737, 28971), (783, 27269), (957, 22311), (999, 21373), (1073, 19899), (1221, 17487), (1809, 11803), (1943, 10989), (2211, 9657), (2479, 8613), (2871, 7437), (3219, 6633), (3663, 5829)]