19937936

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{17551}}^1$

素因数の和:17630

約数の個数: 20

約数和(自身を含む): 39176064

約数和(自身を除く): 19238128

約数列:

[1, 2, 4, 8, 16, 71, 142, 284, 568, 1136, 17551, 35102, 70204, 140408, 280816, 1246121, 2492242, 4984484, 9968968, 19937936]

約数ペア:

[(1, 19937936), (2, 9968968), (4, 4984484), (8, 2492242), (16, 1246121), (71, 280816), (142, 140408), (284, 70204), (568, 35102), (1136, 17551)]