20153647947

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{1009}}^1\times {\mathrm{2521}}^1$

素因数の和:3691

約数の個数: 32

約数和(自身を含む): 28528864000

約数和(自身を除く): 8375216053

約数列:

[1, 3, 19, 57, 139, 417, 1009, 2521, 2641, 3027, 7563, 7923, 19171, 47899, 57513, 140251, 143697, 350419, 420753, 1051257, 2543689, 2664769, 6657961, 7631067, 7994307, 19973883, 48330091, 144990273, 353572771, 1060718313, 6717882649, 20153647947]

約数ペア:

[(1, 20153647947), (3, 6717882649), (19, 1060718313), (57, 353572771), (139, 144990273), (417, 48330091), (1009, 19973883), (2521, 7994307), (2641, 7631067), (3027, 6657961), (7563, 2664769), (7923, 2543689), (19171, 1051257), (47899, 420753), (57513, 350419), (140251, 143697)]