20109688

素因数分解:

$2^3\times {\mathrm{127}}^1\times {\mathrm{19793}}^1$

素因数の和:19926

約数の個数: 16

約数和(自身を含む): 38004480

約数和(自身を除く): 17894792

約数列:

[1, 2, 4, 8, 127, 254, 508, 1016, 19793, 39586, 79172, 158344, 2513711, 5027422, 10054844, 20109688]

約数ペア:

[(1, 20109688), (2, 10054844), (4, 5027422), (8, 2513711), (127, 158344), (254, 79172), (508, 39586), (1016, 19793)]