20691008

素因数分解:

$2^6\times {\mathrm{13}}^2\times {\mathrm{1913}}^1$

素因数の和:1951

約数の個数: 42

約数和(自身を含む): 44483274

約数和(自身を除く): 23792266

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 169, 208, 338, 416, 676, 832, 1352, 1913, 2704, 3826, 5408, 7652, 10816, 15304, 24869, 30608, 49738, 61216, 99476, 122432, 198952, 323297, 397904, 646594, 795808, 1293188, 1591616, 2586376, 5172752, 10345504, 20691008]

約数ペア:

[(1, 20691008), (2, 10345504), (4, 5172752), (8, 2586376), (13, 1591616), (16, 1293188), (26, 795808), (32, 646594), (52, 397904), (64, 323297), (104, 198952), (169, 122432), (208, 99476), (338, 61216), (416, 49738), (676, 30608), (832, 24869), (1352, 15304), (1913, 10816), (2704, 7652), (3826, 5408)]