19395243

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{9931}}^1$

素因数の和:9975

約数の個数: 24

約数和(自身を含む): 33053696

約数和(自身を除く): 13658453

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 217, 279, 651, 1953, 9931, 29793, 69517, 89379, 208551, 307861, 625653, 923583, 2155027, 2770749, 6465081, 19395243]

約数ペア:

[(1, 19395243), (3, 6465081), (7, 2770749), (9, 2155027), (21, 923583), (31, 625653), (63, 307861), (93, 208551), (217, 89379), (279, 69517), (651, 29793), (1953, 9931)]