20981184

素因数分解:

$2^6\times 3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{233}}^1$

素因数の和:322

約数の個数: 112

約数和(自身を含む): 64666368

約数和(自身を除く): 43685184

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 56, 64, 67, 84, 96, 112, 134, 168, 192, 201, 224, 233, 268, 336, 402, 448, 466, 469, 536, 672, 699, 804, 932, 938, 1072, 1344, 1398, 1407, 1608, 1631, 1864, 1876, 2144, 2796, 2814, 3216, 3262, 3728, 3752, 4288, 4893, 5592, 5628, 6432, 6524, 7456, 7504, 9786, 11184, 11256, 12864, 13048, 14912, 15008, 15611, 19572, 22368, 22512, 26096, 30016, 31222, 39144, 44736, 45024, 46833, 52192, 62444, 78288, 90048, 93666, 104384, 109277, 124888, 156576, 187332, 218554, 249776, 313152, 327831, 374664, 437108, 499552, 655662, 749328, 874216, 999104, 1311324, 1498656, 1748432, 2622648, 2997312, 3496864, 5245296, 6993728, 10490592, 20981184]

約数ペア:

[(1, 20981184), (2, 10490592), (3, 6993728), (4, 5245296), (6, 3496864), (7, 2997312), (8, 2622648), (12, 1748432), (14, 1498656), (16, 1311324), (21, 999104), (24, 874216), (28, 749328), (32, 655662), (42, 499552), (48, 437108), (56, 374664), (64, 327831), (67, 313152), (84, 249776), (96, 218554), (112, 187332), (134, 156576), (168, 124888), (192, 109277), (201, 104384), (224, 93666), (233, 90048), (268, 78288), (336, 62444), (402, 52192), (448, 46833), (466, 45024), (469, 44736), (536, 39144), (672, 31222), (699, 30016), (804, 26096), (932, 22512), (938, 22368), (1072, 19572), (1344, 15611), (1398, 15008), (1407, 14912), (1608, 13048), (1631, 12864), (1864, 11256), (1876, 11184), (2144, 9786), (2796, 7504), (2814, 7456), (3216, 6524), (3262, 6432), (3728, 5628), (3752, 5592), (4288, 4893)]