19867965

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{733}}^1$

素因数の和:893

約数の個数: 32

約数和(自身を含む): 34527360

約数和(自身を除く): 14659395

約数列:

[1, 3, 5, 13, 15, 39, 65, 139, 195, 417, 695, 733, 1807, 2085, 2199, 3665, 5421, 9035, 9529, 10995, 27105, 28587, 47645, 101887, 142935, 305661, 509435, 1324531, 1528305, 3973593, 6622655, 19867965]

約数ペア:

[(1, 19867965), (3, 6622655), (5, 3973593), (13, 1528305), (15, 1324531), (39, 509435), (65, 305661), (139, 142935), (195, 101887), (417, 47645), (695, 28587), (733, 27105), (1807, 10995), (2085, 9529), (2199, 9035), (3665, 5421)]