20871196

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{5843}}^1$

素因数の和:5913

約数の個数: 24

約数和(自身を含む): 39271680

約数和(自身を除く): 18400484

約数列:

[1, 2, 4, 19, 38, 47, 76, 94, 188, 893, 1786, 3572, 5843, 11686, 23372, 111017, 222034, 274621, 444068, 549242, 1098484, 5217799, 10435598, 20871196]

約数ペア:

[(1, 20871196), (2, 10435598), (4, 5217799), (19, 1098484), (38, 549242), (47, 444068), (76, 274621), (94, 222034), (188, 111017), (893, 23372), (1786, 11686), (3572, 5843)]