21839880

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{193}}^1$

素因数の和:271

約数の個数: 128

約数和(自身を含む): 70398720

約数和(自身を除く): 48558840

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 41, 46, 60, 69, 82, 92, 115, 120, 123, 138, 164, 184, 193, 205, 230, 246, 276, 328, 345, 386, 410, 460, 492, 552, 579, 615, 690, 772, 820, 920, 943, 965, 984, 1158, 1230, 1380, 1544, 1640, 1886, 1930, 2316, 2460, 2760, 2829, 2895, 3772, 3860, 4439, 4632, 4715, 4920, 5658, 5790, 7544, 7720, 7913, 8878, 9430, 11316, 11580, 13317, 14145, 15826, 17756, 18860, 22195, 22632, 23160, 23739, 26634, 28290, 31652, 35512, 37720, 39565, 44390, 47478, 53268, 56580, 63304, 66585, 79130, 88780, 94956, 106536, 113160, 118695, 133170, 158260, 177560, 181999, 189912, 237390, 266340, 316520, 363998, 474780, 532680, 545997, 727996, 909995, 949560, 1091994, 1455992, 1819990, 2183988, 2729985, 3639980, 4367976, 5459970, 7279960, 10919940, 21839880]

約数ペア:

[(1, 21839880), (2, 10919940), (3, 7279960), (4, 5459970), (5, 4367976), (6, 3639980), (8, 2729985), (10, 2183988), (12, 1819990), (15, 1455992), (20, 1091994), (23, 949560), (24, 909995), (30, 727996), (40, 545997), (41, 532680), (46, 474780), (60, 363998), (69, 316520), (82, 266340), (92, 237390), (115, 189912), (120, 181999), (123, 177560), (138, 158260), (164, 133170), (184, 118695), (193, 113160), (205, 106536), (230, 94956), (246, 88780), (276, 79130), (328, 66585), (345, 63304), (386, 56580), (410, 53268), (460, 47478), (492, 44390), (552, 39565), (579, 37720), (615, 35512), (690, 31652), (772, 28290), (820, 26634), (920, 23739), (943, 23160), (965, 22632), (984, 22195), (1158, 18860), (1230, 17756), (1380, 15826), (1544, 14145), (1640, 13317), (1886, 11580), (1930, 11316), (2316, 9430), (2460, 8878), (2760, 7913), (2829, 7720), (2895, 7544), (3772, 5790), (3860, 5658), (4439, 4920), (4632, 4715)]