20390097

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{3931}}^1$

素因数の和:3973

約数の個数: 32

約数和(自身を含む): 35230720

約数和(自身を除く): 14840623

約数列:

[1, 3, 7, 13, 19, 21, 39, 57, 91, 133, 247, 273, 399, 741, 1729, 3931, 5187, 11793, 27517, 51103, 74689, 82551, 153309, 224067, 357721, 522823, 970957, 1073163, 1568469, 2912871, 6796699, 20390097]

約数ペア:

[(1, 20390097), (3, 6796699), (7, 2912871), (13, 1568469), (19, 1073163), (21, 970957), (39, 522823), (57, 357721), (91, 224067), (133, 153309), (247, 82551), (273, 74689), (399, 51103), (741, 27517), (1729, 11793), (3931, 5187)]