21045136

素因数分解:

$2^4\times 7^1\times {\mathrm{41}}^1\times {\mathrm{4583}}^1$

素因数の和:4639

約数の個数: 40

約数和(自身を含む): 47746944

約数和(自身を除く): 26701808

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 41, 56, 82, 112, 164, 287, 328, 574, 656, 1148, 2296, 4583, 4592, 9166, 18332, 32081, 36664, 64162, 73328, 128324, 187903, 256648, 375806, 513296, 751612, 1315321, 1503224, 2630642, 3006448, 5261284, 10522568, 21045136]

約数ペア:

[(1, 21045136), (2, 10522568), (4, 5261284), (7, 3006448), (8, 2630642), (14, 1503224), (16, 1315321), (28, 751612), (41, 513296), (56, 375806), (82, 256648), (112, 187903), (164, 128324), (287, 73328), (328, 64162), (574, 36664), (656, 32081), (1148, 18332), (2296, 9166), (4583, 4592)]