21719258

素因数分解:

$2^1\times {\mathrm{11}}^3\times {\mathrm{41}}^1\times {\mathrm{199}}^1$

素因数の和:275

約数の個数: 32

約数和(自身を含む): 36892800

約数和(自身を除く): 15173542

約数列:

[1, 2, 11, 22, 41, 82, 121, 199, 242, 398, 451, 902, 1331, 2189, 2662, 4378, 4961, 8159, 9922, 16318, 24079, 48158, 54571, 89749, 109142, 179498, 264869, 529738, 987239, 1974478, 10859629, 21719258]

約数ペア:

[(1, 21719258), (2, 10859629), (11, 1974478), (22, 987239), (41, 529738), (82, 264869), (121, 179498), (199, 109142), (242, 89749), (398, 54571), (451, 48158), (902, 24079), (1331, 16318), (2189, 9922), (2662, 8159), (4378, 4961)]