20863605

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{198701}}^1$

素因数の和:198716

約数の個数: 16

約数和(自身を含む): 38150784

約数和(自身を除く): 17287179

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 198701, 596103, 993505, 1390907, 2980515, 4172721, 6954535, 20863605]

約数ペア:

[(1, 20863605), (3, 6954535), (5, 4172721), (7, 2980515), (15, 1390907), (21, 993505), (35, 596103), (105, 198701)]