20487206

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{11471}}^1$

素因数の和:11539

約数の個数: 16

約数和(自身を含む): 33039360

約数和(自身を除く): 12552154

約数列:

[1, 2, 19, 38, 47, 94, 893, 1786, 11471, 22942, 217949, 435898, 539137, 1078274, 10243603, 20487206]

約数ペア:

[(1, 20487206), (2, 10243603), (19, 1078274), (38, 539137), (47, 435898), (94, 217949), (893, 22942), (1786, 11471)]