20353131

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{971}}^1$

素因数の和:1131

約数の個数: 24

約数和(自身を含む): 31387824

約数和(自身を除く): 11034693

約数列:

[1, 3, 9, 17, 51, 137, 153, 411, 971, 1233, 2329, 2913, 6987, 8739, 16507, 20961, 49521, 133027, 148563, 399081, 1197243, 2261459, 6784377, 20353131]

約数ペア:

[(1, 20353131), (3, 6784377), (9, 2261459), (17, 1197243), (51, 399081), (137, 148563), (153, 133027), (411, 49521), (971, 20961), (1233, 16507), (2329, 8739), (2913, 6987)]