20856908

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{5839}}^1$

素因数の和:5909

約数の個数: 24

約数和(自身を含む): 39244800

約数和(自身を除く): 18387892

約数列:

[1, 2, 4, 19, 38, 47, 76, 94, 188, 893, 1786, 3572, 5839, 11678, 23356, 110941, 221882, 274433, 443764, 548866, 1097732, 5214227, 10428454, 20856908]

約数ペア:

[(1, 20856908), (2, 10428454), (4, 5214227), (19, 1097732), (38, 548866), (47, 443764), (76, 274433), (94, 221882), (188, 110941), (893, 23356), (1786, 11678), (3572, 5839)]