20509246

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{457}}^1\times {\mathrm{1181}}^1$

素因数の和:1659

約数の個数: 16

約数和(自身を含む): 32481360

約数和(自身を除く): 11972114

約数列:

[1, 2, 19, 38, 457, 914, 1181, 2362, 8683, 17366, 22439, 44878, 539717, 1079434, 10254623, 20509246]

約数ペア:

[(1, 20509246), (2, 10254623), (19, 1079434), (38, 539717), (457, 44878), (914, 22439), (1181, 17366), (2362, 8683)]