20945048

素因数分解:

$2^3\times {\mathrm{271}}^1\times {\mathrm{9661}}^1$

素因数の和:9938

約数の個数: 16

約数和(自身を含む): 39420960

約数和(自身を除く): 18475912

約数列:

[1, 2, 4, 8, 271, 542, 1084, 2168, 9661, 19322, 38644, 77288, 2618131, 5236262, 10472524, 20945048]

約数ペア:

[(1, 20945048), (2, 10472524), (4, 5236262), (8, 2618131), (271, 77288), (542, 38644), (1084, 19322), (2168, 9661)]