16420278

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{390959}}^1$

素因数の和:390971

約数の個数: 16

約数和(自身を含む): 37532160

約数和(自身を除く): 21111882

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 390959, 781918, 1172877, 2345754, 2736713, 5473426, 8210139, 16420278]

約数ペア:

[(1, 16420278), (2, 8210139), (3, 5473426), (6, 2736713), (7, 2345754), (14, 1172877), (21, 781918), (42, 390959)]