21609588

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{257}}^1$

素因数の和:302

約数の個数: 144

約数和(自身を含む): 69177024

約数和(自身を除く): 47567436

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 13, 14, 21, 22, 26, 28, 33, 39, 42, 44, 49, 52, 66, 77, 78, 84, 91, 98, 132, 143, 147, 154, 156, 182, 196, 231, 257, 273, 286, 294, 308, 364, 429, 462, 514, 539, 546, 572, 588, 637, 771, 858, 924, 1001, 1028, 1078, 1092, 1274, 1542, 1617, 1716, 1799, 1911, 2002, 2156, 2548, 2827, 3003, 3084, 3234, 3341, 3598, 3822, 4004, 5397, 5654, 6006, 6468, 6682, 7007, 7196, 7644, 8481, 10023, 10794, 11308, 12012, 12593, 13364, 14014, 16962, 19789, 20046, 21021, 21588, 23387, 25186, 28028, 33924, 36751, 37779, 39578, 40092, 42042, 46774, 50372, 59367, 70161, 73502, 75558, 79156, 84084, 93548, 110253, 118734, 138523, 140322, 147004, 151116, 163709, 220506, 237468, 257257, 277046, 280644, 327418, 415569, 441012, 491127, 514514, 554092, 654836, 771771, 831138, 982254, 1029028, 1543542, 1662276, 1800799, 1964508, 3087084, 3601598, 5402397, 7203196, 10804794, 21609588]

約数ペア:

[(1, 21609588), (2, 10804794), (3, 7203196), (4, 5402397), (6, 3601598), (7, 3087084), (11, 1964508), (12, 1800799), (13, 1662276), (14, 1543542), (21, 1029028), (22, 982254), (26, 831138), (28, 771771), (33, 654836), (39, 554092), (42, 514514), (44, 491127), (49, 441012), (52, 415569), (66, 327418), (77, 280644), (78, 277046), (84, 257257), (91, 237468), (98, 220506), (132, 163709), (143, 151116), (147, 147004), (154, 140322), (156, 138523), (182, 118734), (196, 110253), (231, 93548), (257, 84084), (273, 79156), (286, 75558), (294, 73502), (308, 70161), (364, 59367), (429, 50372), (462, 46774), (514, 42042), (539, 40092), (546, 39578), (572, 37779), (588, 36751), (637, 33924), (771, 28028), (858, 25186), (924, 23387), (1001, 21588), (1028, 21021), (1078, 20046), (1092, 19789), (1274, 16962), (1542, 14014), (1617, 13364), (1716, 12593), (1799, 12012), (1911, 11308), (2002, 10794), (2156, 10023), (2548, 8481), (2827, 7644), (3003, 7196), (3084, 7007), (3234, 6682), (3341, 6468), (3598, 6006), (3822, 5654), (4004, 5397)]