28219978

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{509}}^1\times {\mathrm{1459}}^1$

素因数の和:1989

約数の個数: 16

約数和(自身を含む): 44676000

約数和(自身を除く): 16456022

約数列:

[1, 2, 19, 38, 509, 1018, 1459, 2918, 9671, 19342, 27721, 55442, 742631, 1485262, 14109989, 28219978]

約数ペア:

[(1, 28219978), (2, 14109989), (19, 1485262), (38, 742631), (509, 55442), (1018, 27721), (1459, 19342), (2918, 9671)]