21671989.000000000

素因数分解:

$2^6\times 3^3\times 7^1\times {\mathrm{18233}}^1$

素因数の和:18261

約数の個数: 112

約数和(自身を含む): 741029760

約数和(自身を除く): 520483392

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 27, 28, 32, 36, 42, 48, 54, 56, 63, 64, 72, 84, 96, 108, 112, 126, 144, 168, 189, 192, 216, 224, 252, 288, 336, 378, 432, 448, 504, 576, 672, 756, 864, 1008, 1344, 1512, 1728, 2016, 3024, 4032, 6048, 12096, 18233, 36466, 54699, 72932, 109398, 127631, 145864, 164097, 218796, 255262, 291728, 328194, 382893, 437592, 492291, 510524, 583456, 656388, 765786, 875184, 984582, 1021048, 1148679, 1166912, 1312776, 1531572, 1750368, 1969164, 2042096, 2297358, 2625552, 3063144, 3446037, 3500736, 3938328, 4084192, 4594716, 5251104, 6126288, 6892074, 7876656, 8168384, 9189432, 10502208, 12252576, 13784148, 15753312, 18378864, 24505152, 27568296, 31506624, 36757728, 55136592, 73515456, 110273184, 220546368]

約数ペア:

[(1, 220546368), (2, 110273184), (3, 73515456), (4, 55136592), (6, 36757728), (7, 31506624), (8, 27568296), (9, 24505152), (12, 18378864), (14, 15753312), (16, 13784148), (18, 12252576), (21, 10502208), (24, 9189432), (27, 8168384), (28, 7876656), (32, 6892074), (36, 6126288), (42, 5251104), (48, 4594716), (54, 4084192), (56, 3938328), (63, 3500736), (64, 3446037), (72, 3063144), (84, 2625552), (96, 2297358), (108, 2042096), (112, 1969164), (126, 1750368), (144, 1531572), (168, 1312776), (189, 1166912), (192, 1148679), (216, 1021048), (224, 984582), (252, 875184), (288, 765786), (336, 656388), (378, 583456), (432, 510524), (448, 492291), (504, 437592), (576, 382893), (672, 328194), (756, 291728), (864, 255262), (1008, 218796), (1344, 164097), (1512, 145864), (1728, 127631), (2016, 109398), (3024, 72932), (4032, 54699), (6048, 36466), (12096, 18233)]