200172973

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{643}}^1$

素因数の和:985

約数の個数: 32

約数和(自身を含む): 270047232

約数和(自身を除く): 69874259

約数列:

[1, 7, 11, 13, 77, 91, 143, 311, 643, 1001, 2177, 3421, 4043, 4501, 7073, 8359, 23947, 28301, 44473, 49511, 58513, 91949, 199973, 311311, 643643, 1399811, 2199703, 2599649, 15397921, 18197543, 28596139, 200172973]

約数ペア:

[(1, 200172973), (7, 28596139), (11, 18197543), (13, 15397921), (77, 2599649), (91, 2199703), (143, 1399811), (311, 643643), (643, 311311), (1001, 199973), (2177, 91949), (3421, 58513), (4043, 49511), (4501, 44473), (7073, 28301), (8359, 23947)]