21956704

素因数分解:

$2^5\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1$

素因数の和:121

約数の個数: 144

約数和(自身を含む): 58605120

約数和(自身を除く): 36648416

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 19, 22, 28, 32, 38, 44, 49, 56, 67, 76, 77, 88, 98, 112, 133, 134, 152, 154, 176, 196, 209, 224, 266, 268, 304, 308, 352, 392, 418, 469, 532, 536, 539, 608, 616, 737, 784, 836, 931, 938, 1064, 1072, 1078, 1232, 1273, 1463, 1474, 1568, 1672, 1862, 1876, 2128, 2144, 2156, 2464, 2546, 2926, 2948, 3283, 3344, 3724, 3752, 4256, 4312, 5092, 5159, 5852, 5896, 6566, 6688, 7448, 7504, 8624, 8911, 10184, 10241, 10318, 11704, 11792, 13132, 14003, 14896, 15008, 17248, 17822, 20368, 20482, 20636, 23408, 23584, 26264, 28006, 29792, 35644, 36113, 40736, 40964, 41272, 46816, 52528, 56012, 62377, 71288, 72226, 81928, 82544, 98021, 105056, 112024, 124754, 142576, 144452, 163856, 165088, 196042, 224048, 249508, 285152, 288904, 327712, 392084, 448096, 499016, 577808, 686147, 784168, 998032, 1155616, 1372294, 1568336, 1996064, 2744588, 3136672, 5489176, 10978352, 21956704]

約数ペア:

[(1, 21956704), (2, 10978352), (4, 5489176), (7, 3136672), (8, 2744588), (11, 1996064), (14, 1568336), (16, 1372294), (19, 1155616), (22, 998032), (28, 784168), (32, 686147), (38, 577808), (44, 499016), (49, 448096), (56, 392084), (67, 327712), (76, 288904), (77, 285152), (88, 249508), (98, 224048), (112, 196042), (133, 165088), (134, 163856), (152, 144452), (154, 142576), (176, 124754), (196, 112024), (209, 105056), (224, 98021), (266, 82544), (268, 81928), (304, 72226), (308, 71288), (352, 62377), (392, 56012), (418, 52528), (469, 46816), (532, 41272), (536, 40964), (539, 40736), (608, 36113), (616, 35644), (737, 29792), (784, 28006), (836, 26264), (931, 23584), (938, 23408), (1064, 20636), (1072, 20482), (1078, 20368), (1232, 17822), (1273, 17248), (1463, 15008), (1474, 14896), (1568, 14003), (1672, 13132), (1862, 11792), (1876, 11704), (2128, 10318), (2144, 10241), (2156, 10184), (2464, 8911), (2546, 8624), (2926, 7504), (2948, 7448), (3283, 6688), (3344, 6566), (3724, 5896), (3752, 5852), (4256, 5159), (4312, 5092)]