21736242

素因数分解:

$2^1\times 3^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1$

素因数の和:125

約数の個数: 128

約数和(自身を含む): 57784320

約数和(自身を除く): 36048078

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 23, 27, 33, 37, 43, 46, 54, 66, 69, 74, 86, 99, 111, 129, 138, 198, 207, 222, 253, 258, 297, 333, 387, 407, 414, 473, 506, 594, 621, 666, 759, 774, 814, 851, 946, 989, 999, 1161, 1221, 1242, 1419, 1518, 1591, 1702, 1978, 1998, 2277, 2322, 2442, 2553, 2838, 2967, 3182, 3663, 4257, 4554, 4773, 5106, 5934, 6831, 7326, 7659, 8514, 8901, 9361, 9546, 10879, 10989, 12771, 13662, 14319, 15318, 17501, 17802, 18722, 21758, 21978, 22977, 25542, 26703, 28083, 28638, 32637, 35002, 36593, 42957, 45954, 52503, 53406, 56166, 65274, 73186, 84249, 85914, 97911, 105006, 109779, 157509, 168498, 195822, 219558, 252747, 293733, 315018, 329337, 402523, 472527, 505494, 587466, 658674, 805046, 945054, 988011, 1207569, 1976022, 2415138, 3622707, 7245414, 10868121, 21736242]

約数ペア:

[(1, 21736242), (2, 10868121), (3, 7245414), (6, 3622707), (9, 2415138), (11, 1976022), (18, 1207569), (22, 988011), (23, 945054), (27, 805046), (33, 658674), (37, 587466), (43, 505494), (46, 472527), (54, 402523), (66, 329337), (69, 315018), (74, 293733), (86, 252747), (99, 219558), (111, 195822), (129, 168498), (138, 157509), (198, 109779), (207, 105006), (222, 97911), (253, 85914), (258, 84249), (297, 73186), (333, 65274), (387, 56166), (407, 53406), (414, 52503), (473, 45954), (506, 42957), (594, 36593), (621, 35002), (666, 32637), (759, 28638), (774, 28083), (814, 26703), (851, 25542), (946, 22977), (989, 21978), (999, 21758), (1161, 18722), (1221, 17802), (1242, 17501), (1419, 15318), (1518, 14319), (1591, 13662), (1702, 12771), (1978, 10989), (1998, 10879), (2277, 9546), (2322, 9361), (2442, 8901), (2553, 8514), (2838, 7659), (2967, 7326), (3182, 6831), (3663, 5934), (4257, 5106), (4554, 4773)]