19699719

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{691}}^1$

素因数の和:767

約数の個数: 32

約数和(自身を含む): 30691584

約数和(自身を除く): 10991865

約数列:

[1, 3, 13, 17, 39, 43, 51, 129, 221, 559, 663, 691, 731, 1677, 2073, 2193, 8983, 9503, 11747, 26949, 28509, 29713, 35241, 89139, 152711, 386269, 458133, 505121, 1158807, 1515363, 6566573, 19699719]

約数ペア:

[(1, 19699719), (3, 6566573), (13, 1515363), (17, 1158807), (39, 505121), (43, 458133), (51, 386269), (129, 152711), (221, 89139), (559, 35241), (663, 29713), (691, 28509), (731, 26949), (1677, 11747), (2073, 9503), (2193, 8983)]