21127337

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{167}}^1$

素因数の和:269

約数の個数: 32

約数和(自身を含む): 27869184

約数和(自身を除く): 6741847

約数列:

[1, 7, 11, 31, 53, 77, 167, 217, 341, 371, 583, 1169, 1643, 1837, 2387, 4081, 5177, 8851, 11501, 12859, 18073, 36239, 56947, 61957, 97361, 126511, 274381, 398629, 681527, 1920667, 3018191, 21127337]

約数ペア:

[(1, 21127337), (7, 3018191), (11, 1920667), (31, 681527), (53, 398629), (77, 274381), (167, 126511), (217, 97361), (341, 61957), (371, 56947), (583, 36239), (1169, 18073), (1643, 12859), (1837, 11501), (2387, 8851), (4081, 5177)]