19710878

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{12619}}^1$

素因数の和:12703

約数の個数: 16

約数和(自身を含む): 32711040

約数和(自身を除く): 13000162

約数列:

[1, 2, 11, 22, 71, 142, 781, 1562, 12619, 25238, 138809, 277618, 895949, 1791898, 9855439, 19710878]

約数ペア:

[(1, 19710878), (2, 9855439), (11, 1791898), (22, 895949), (71, 277618), (142, 138809), (781, 25238), (1562, 12619)]