21020544

素因数分解:

$2^7\times 3^2\times {\mathrm{71}}^1\times {\mathrm{257}}^1$

素因数の和:348

約数の個数: 96

約数和(自身を含む): 61579440

約数和(自身を除く): 40558896

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 64, 71, 72, 96, 128, 142, 144, 192, 213, 257, 284, 288, 384, 426, 514, 568, 576, 639, 771, 852, 1028, 1136, 1152, 1278, 1542, 1704, 2056, 2272, 2313, 2556, 3084, 3408, 4112, 4544, 4626, 5112, 6168, 6816, 8224, 9088, 9252, 10224, 12336, 13632, 16448, 18247, 18504, 20448, 24672, 27264, 32896, 36494, 37008, 40896, 49344, 54741, 72988, 74016, 81792, 98688, 109482, 145976, 148032, 164223, 218964, 291952, 296064, 328446, 437928, 583904, 656892, 875856, 1167808, 1313784, 1751712, 2335616, 2627568, 3503424, 5255136, 7006848, 10510272, 21020544]

約数ペア:

[(1, 21020544), (2, 10510272), (3, 7006848), (4, 5255136), (6, 3503424), (8, 2627568), (9, 2335616), (12, 1751712), (16, 1313784), (18, 1167808), (24, 875856), (32, 656892), (36, 583904), (48, 437928), (64, 328446), (71, 296064), (72, 291952), (96, 218964), (128, 164223), (142, 148032), (144, 145976), (192, 109482), (213, 98688), (257, 81792), (284, 74016), (288, 72988), (384, 54741), (426, 49344), (514, 40896), (568, 37008), (576, 36494), (639, 32896), (771, 27264), (852, 24672), (1028, 20448), (1136, 18504), (1152, 18247), (1278, 16448), (1542, 13632), (1704, 12336), (2056, 10224), (2272, 9252), (2313, 9088), (2556, 8224), (3084, 6816), (3408, 6168), (4112, 5112), (4544, 4626)]