17972283

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1\times {\mathrm{139}}^1$

素因数の和:327

約数の個数: 32

約数和(自身を含む): 28385280

約数和(自身を除く): 10412997

約数列:

[1, 3, 7, 21, 47, 131, 139, 141, 329, 393, 417, 917, 973, 987, 2751, 2919, 6157, 6533, 18209, 18471, 19599, 43099, 45731, 54627, 127463, 129297, 137193, 382389, 855823, 2567469, 5990761, 17972283]

約数ペア:

[(1, 17972283), (3, 5990761), (7, 2567469), (21, 855823), (47, 382389), (131, 137193), (139, 129297), (141, 127463), (329, 54627), (393, 45731), (417, 43099), (917, 19599), (973, 18471), (987, 18209), (2751, 6533), (2919, 6157)]