19966128

素因数分解:

$2^4\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{653}}^1$

素因数の和:691

約数の個数: 120

約数和(自身を含む): 64714608

約数和(自身を除く): 44748480

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 13, 14, 16, 21, 24, 26, 28, 39, 42, 48, 49, 52, 56, 78, 84, 91, 98, 104, 112, 147, 156, 168, 182, 196, 208, 273, 294, 312, 336, 364, 392, 546, 588, 624, 637, 653, 728, 784, 1092, 1176, 1274, 1306, 1456, 1911, 1959, 2184, 2352, 2548, 2612, 3822, 3918, 4368, 4571, 5096, 5224, 7644, 7836, 8489, 9142, 10192, 10448, 13713, 15288, 15672, 16978, 18284, 25467, 27426, 30576, 31344, 31997, 33956, 36568, 50934, 54852, 59423, 63994, 67912, 73136, 95991, 101868, 109704, 118846, 127988, 135824, 178269, 191982, 203736, 219408, 237692, 255976, 356538, 383964, 407472, 415961, 475384, 511952, 713076, 767928, 831922, 950768, 1247883, 1426152, 1535856, 1663844, 2495766, 2852304, 3327688, 4991532, 6655376, 9983064, 19966128]

約数ペア:

[(1, 19966128), (2, 9983064), (3, 6655376), (4, 4991532), (6, 3327688), (7, 2852304), (8, 2495766), (12, 1663844), (13, 1535856), (14, 1426152), (16, 1247883), (21, 950768), (24, 831922), (26, 767928), (28, 713076), (39, 511952), (42, 475384), (48, 415961), (49, 407472), (52, 383964), (56, 356538), (78, 255976), (84, 237692), (91, 219408), (98, 203736), (104, 191982), (112, 178269), (147, 135824), (156, 127988), (168, 118846), (182, 109704), (196, 101868), (208, 95991), (273, 73136), (294, 67912), (312, 63994), (336, 59423), (364, 54852), (392, 50934), (546, 36568), (588, 33956), (624, 31997), (637, 31344), (653, 30576), (728, 27426), (784, 25467), (1092, 18284), (1176, 16978), (1274, 15672), (1306, 15288), (1456, 13713), (1911, 10448), (1959, 10192), (2184, 9142), (2352, 8489), (2548, 7836), (2612, 7644), (3822, 5224), (3918, 5096), (4368, 4571)]