21851648

素因数分解:

$2^9\times 7^2\times {\mathrm{13}}^1\times {\mathrm{67}}^1$

素因数の和:112

約数の個数: 120

約数和(自身を含む): 55512072

約数和(自身を除く): 33660424

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 49, 52, 56, 64, 67, 91, 98, 104, 112, 128, 134, 182, 196, 208, 224, 256, 268, 364, 392, 416, 448, 469, 512, 536, 637, 728, 784, 832, 871, 896, 938, 1072, 1274, 1456, 1568, 1664, 1742, 1792, 1876, 2144, 2548, 2912, 3136, 3283, 3328, 3484, 3584, 3752, 4288, 5096, 5824, 6097, 6272, 6566, 6656, 6968, 7504, 8576, 10192, 11648, 12194, 12544, 13132, 13936, 15008, 17152, 20384, 23296, 24388, 25088, 26264, 27872, 30016, 34304, 40768, 42679, 46592, 48776, 52528, 55744, 60032, 81536, 85358, 97552, 105056, 111488, 120064, 163072, 170716, 195104, 210112, 222976, 240128, 326144, 341432, 390208, 420224, 445952, 682864, 780416, 840448, 1365728, 1560832, 1680896, 2731456, 3121664, 5462912, 10925824, 21851648]

約数ペア:

[(1, 21851648), (2, 10925824), (4, 5462912), (7, 3121664), (8, 2731456), (13, 1680896), (14, 1560832), (16, 1365728), (26, 840448), (28, 780416), (32, 682864), (49, 445952), (52, 420224), (56, 390208), (64, 341432), (67, 326144), (91, 240128), (98, 222976), (104, 210112), (112, 195104), (128, 170716), (134, 163072), (182, 120064), (196, 111488), (208, 105056), (224, 97552), (256, 85358), (268, 81536), (364, 60032), (392, 55744), (416, 52528), (448, 48776), (469, 46592), (512, 42679), (536, 40768), (637, 34304), (728, 30016), (784, 27872), (832, 26264), (871, 25088), (896, 24388), (938, 23296), (1072, 20384), (1274, 17152), (1456, 15008), (1568, 13936), (1664, 13132), (1742, 12544), (1792, 12194), (1876, 11648), (2144, 10192), (2548, 8576), (2912, 7504), (3136, 6968), (3283, 6656), (3328, 6566), (3484, 6272), (3584, 6097), (3752, 5824), (4288, 5096)]