19992038

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{12799}}^1$

素因数の和:12883

約数の個数: 16

約数和(自身を含む): 33177600

約数和(自身を除く): 13185562

約数列:

[1, 2, 11, 22, 71, 142, 781, 1562, 12799, 25598, 140789, 281578, 908729, 1817458, 9996019, 19992038]

約数ペア:

[(1, 19992038), (2, 9996019), (11, 1817458), (22, 908729), (71, 281578), (142, 140789), (781, 25598), (1562, 12799)]