209920659

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{1613}}^1$

素因数の和:1747

約数の個数: 32

約数和(自身を含む): 312367104

約数和(自身を除く): 102446445

約数列:

[1, 3, 13, 39, 47, 71, 141, 213, 611, 923, 1613, 1833, 2769, 3337, 4839, 10011, 20969, 43381, 62907, 75811, 114523, 130143, 227433, 343569, 985543, 1488799, 2956629, 4466397, 5382581, 16147743, 69973553, 209920659]

約数ペア:

[(1, 209920659), (3, 69973553), (13, 16147743), (39, 5382581), (47, 4466397), (71, 2956629), (141, 1488799), (213, 985543), (611, 343569), (923, 227433), (1613, 130143), (1833, 114523), (2769, 75811), (3337, 62907), (4839, 43381), (10011, 20969)]