21062192

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{331}}^1$

素因数の和:477

約数の個数: 40

約数和(自身を含む): 42361872

約数和(自身を除く): 21299680

約数列:

[1, 2, 4, 8, 16, 41, 82, 97, 164, 194, 328, 331, 388, 656, 662, 776, 1324, 1552, 2648, 3977, 5296, 7954, 13571, 15908, 27142, 31816, 32107, 54284, 63632, 64214, 108568, 128428, 217136, 256856, 513712, 1316387, 2632774, 5265548, 10531096, 21062192]

約数ペア:

[(1, 21062192), (2, 10531096), (4, 5265548), (8, 2632774), (16, 1316387), (41, 513712), (82, 256856), (97, 217136), (164, 128428), (194, 108568), (328, 64214), (331, 63632), (388, 54284), (656, 32107), (662, 31816), (776, 27142), (1324, 15908), (1552, 13571), (2648, 7954), (3977, 5296)]